ReportWire

Tag: respiratory illness

  • Flu cases surge in New York this holiday season | Long Island Business News

    [ad_1]

    THE BLUEPRINT:

    • hospitalizations jump 75% in one week.

    • is the dominant strain statewide.

    • cases up 35% and COVID cases up 15% across NY.

    • Experts urge flu, RSV, and COVID before holidays

    Medical experts are urging New Yorkers to protect themselves against . Since Thanksgiving, flu especially is hitting the region hard, including on Long Island, where activity level for respiratory illness is “very high,” according to the weekly influenza surveillance report by the U.S. Centers for Disease Control and Prevention.

    “Flu is rising a lot faster than it did last year,” Dr. Dwayne Breining, senior vice president of Lab Services at , said in a news release about the rise in flu, respiratory syncytial virus (RSV) and COVID.

    According to the most recent statewide figures, 1,399 people were hospitalized with the flu during the week ending Dec. 6, marking a 75% increase from 798 hospitalizations reported the previous week.

    Breining anticipates that this will be an active flu season for the third straight year.

    “That’s driven by a couple of factors: There aren’t as many people getting vaccinated. There’s a lot of misinformation about vaccines out there. The other thing: The virus continues to mutate,” he said.

    Currently, influenza A is the main flu virus spreading in New York State. Among the flu A cases that have been tested this season, about 94% are the H3 type, according to state data.

    Flu seasons often don’t peak until around February, so it’s too early to know how big a problem that mismatch will be.

    Hospitalized flu cases at Northwell are evenly split between children and older adults, said Dr. Annemarie Stroustrup, senior vice president of Pediatric Services at Northwell, which oversees Cohen Children’s Medical Center. The children’s hospital is already at capacity.

    And across the state, RSV cases are up 35 percent while COVID is up 15 percent, according to state data.

    Medical experts say vaccines are available to protect against flu, COVID and RSV, ahead of holiday gatherings and travel.

    “We expect a more severe flu season due to circulating strains of the virus compared to last year,” State Commissioner Dr. James McDonald said in a written statement.

    “To protect yourself and loved ones against COVID, influenza and RSV, we strongly encourage you to take action for your health and get vaccinated ahead of the holidays,” he said. “Gathering with loved ones is what this season is all about. Vaccines ensure we have the best protection.”

     


    [ad_2]

    Adina Genn

    Source link

  • Common respiratory virus is on the rise, CDC warns, with higher risk for certain groups

    Common respiratory virus is on the rise, CDC warns, with higher risk for certain groups

    [ad_1]

    A seasonal respiratory virus named parvovirus B19 — sometimes also called fifth disease — is increasing in activity, the U.S. Centers for Disease Control and Prevention warned Tuesday.Related video above: Drowning rates in the US rise after decades of decline, new CDC report revealsParvovirus B19 is a common virus spread by respiratory droplets. Antibodies from infection are believed to help protect against reinfection, the CDC says; about half of US adults have detectable levels of these antibodies by age 20, and more than 70% have antibodies by 40. People in occupations with close contact with children, such as schools and day cares, tend to be at higher risk of infection.As with many other respiratory illnesses, efforts to prevent the spread of COVID-19 during the pandemic dramatically lowered parvovirus B19 infections, with a corresponding loss of immunity.The CDC warned in a Health Alert Network advisory Tuesday that it has received reports of higher test positivity rates recently, as well as clusters of complications among people at high risk of severe illness. The proportion of people with antibodies indicating recent infection, which fell below 3% during 2022-24, reached 10% in June, with the highest increase among children ages 5 to 9.The CDC says it has also received anecdotal reports of higher-than-expected case counts among pregnant people, including complications such as severe fetal anemia or miscarriage and increases in aplastic anemia in people with sickle cell disease.Many people who catch parvovirus B19 don’t have symptoms, but those who do will typically notice two phases of illness. In the first phase, which begins about a week after infection, they develop symptoms such as fever, muscle aches and malaise that last about five days. This is when people are most contagious.During the second phase of illness, which begins a week or so later, children usually develop a hallmark facial rash, often called a slapped cheek rash, followed by a body rash or joint pain. Adults often have a rash on the trunk and joint pain.Parvovirus can cause severe complications in certain groups. People with chronic hemolytic conditions like sickle cell disease or those with severely weakened immune systems may develop aplastic anemia, a rare and life-threatening blood disorder. Among pregnant people, about 5% to 10% of cases can result in adverse fetal outcomes such as anemia, hydrops or miscarriage.There’s no vaccine for parvovirus and no specific treatment other than easing symptoms. Most infections will clear up on their own.As cases rise, the CDC recommends that everyone follow general precautions for preventing the spread of respiratory illness, such as washing hands frequently, keeping common surfaces clean and covering your mouth and nose when you cough or sneeze. If you develop symptoms, stay away from other people until they improve, and you have been fever-free for at least 24 hours without medication.If you are pregnant, have a weakened immune system or have a chronic hemolytic disorder, the agency says you may want to wear a mask around other people and get medical care right away if you develop symptoms.

    A seasonal respiratory virus named parvovirus B19 — sometimes also called fifth disease — is increasing in activity, the U.S. Centers for Disease Control and Prevention warned Tuesday.

    Related video above: Drowning rates in the US rise after decades of decline, new CDC report reveals

    Parvovirus B19 is a common virus spread by respiratory droplets. Antibodies from infection are believed to help protect against reinfection, the CDC says; about half of US adults have detectable levels of these antibodies by age 20, and more than 70% have antibodies by 40. People in occupations with close contact with children, such as schools and day cares, tend to be at higher risk of infection.

    As with many other respiratory illnesses, efforts to prevent the spread of COVID-19 during the pandemic dramatically lowered parvovirus B19 infections, with a corresponding loss of immunity.

    The CDC warned in a Health Alert Network advisory Tuesday that it has received reports of higher test positivity rates recently, as well as clusters of complications among people at high risk of severe illness. The proportion of people with antibodies indicating recent infection, which fell below 3% during 2022-24, reached 10% in June, with the highest increase among children ages 5 to 9.

    The CDC says it has also received anecdotal reports of higher-than-expected case counts among pregnant people, including complications such as severe fetal anemia or miscarriage and increases in aplastic anemia in people with sickle cell disease.

    Many people who catch parvovirus B19 don’t have symptoms, but those who do will typically notice two phases of illness. In the first phase, which begins about a week after infection, they develop symptoms such as fever, muscle aches and malaise that last about five days. This is when people are most contagious.

    During the second phase of illness, which begins a week or so later, children usually develop a hallmark facial rash, often called a slapped cheek rash, followed by a body rash or joint pain. Adults often have a rash on the trunk and joint pain.

    Parvovirus can cause severe complications in certain groups. People with chronic hemolytic conditions like sickle cell disease or those with severely weakened immune systems may develop aplastic anemia, a rare and life-threatening blood disorder. Among pregnant people, about 5% to 10% of cases can result in adverse fetal outcomes such as anemia, hydrops or miscarriage.

    There’s no vaccine for parvovirus and no specific treatment other than easing symptoms. Most infections will clear up on their own.

    As cases rise, the CDC recommends that everyone follow general precautions for preventing the spread of respiratory illness, such as washing hands frequently, keeping common surfaces clean and covering your mouth and nose when you cough or sneeze. If you develop symptoms, stay away from other people until they improve, and you have been fever-free for at least 24 hours without medication.

    If you are pregnant, have a weakened immune system or have a chronic hemolytic disorder, the agency says you may want to wear a mask around other people and get medical care right away if you develop symptoms.

    [ad_2]

    Source link

  • One More COVID Summer?

    One More COVID Summer?

    [ad_1]

    Since the pandemic’s earliest days, epidemiologists have been waiting for the coronavirus to finally snap out of its pan-season spree. No more spring waves like the first to hit the United States in 2020, no more mid-year surges like the one that turned Hot Vax Summer on its head. Eventually, or so the hope went, SARS-CoV-2 would adhere to the same calendar that many other airway pathogens stick to, at least in temperate parts of the globe: a heavy winter peak, then a summer on sabbatical.

    But three and a half years into the outbreak, the coronavirus is still stubbornly refusing to take the warmest months off. Some public-health experts are now worried that, after a relatively quiet stretch, the virus is kick-starting yet another summer wave. In the southern and northeastern United States, concentrations of the coronavirus in wastewater have been slowly ticking up for several weeks, with the Midwest and West now following suit; test-positivity rates, emergency-department diagnoses of COVID-19, and COVID hospitalizations are also on the rise. The absolute numbers are still small, and they may stay that way. But these are the clear and early signs of a brewing mid-year wave, says Caitlin Rivers, an epidemiologist at Johns Hopkins University—which would make this the fourth summer in a row with a distinct coronavirus bump.

    Even this far into the pandemic, though, no one can say for certain whether summer waves are a permanent COVID fixture—or if the virus exhibits a predictable seasonal pattern at all. No law of nature dictates that winters must come with respiratory illness, or that summers will not. “We just don’t know very much about what drives the cyclical patterns of respiratory infections,” says Sam Scarpino, an infectious-disease modeler at Northeastern University. Which means there’s still no part of the year when this virus is guaranteed to cut us any slack.

    That many pathogens do wax and wane with the seasons is indisputable. In temperate parts of the world, airborne bugs get a boost in winter, only to be stifled in the heat; polio and other feces-borne pathogens, meanwhile, often rise in summer, along with gonorrhea and some other STIs. But noticing these trends is one thing; truly understanding the triggers is another.

    Some diseases lend themselves a bit more easily to explanation: Near the equator, waves of mosquito-borne illness, such as Zika and Chikungunya, tend to be tied to the weather-dependent life cycles of the insects that carry them; in temperate parts of the world, rates of Lyme disease track with the summertime activity of ticks. Flu, too, has pretty strong data to back its preference for wintry months. The virus—which is sheathed in a fragile, fatty layer called an envelope and travels airborne via moist drops—spreads best when it’s cool and dry, conditions that may help keep infectious particles intact and spittle aloft.

    The coronavirus has enough similarities to flu that most experts expect that it will continue to spread in winter too. Both viruses are housed in a sensitive skin; both prefer to move by aerosol. Both are also relatively speedy evolvers that don’t tend to generate long-lasting immunity against infection—factors conducive to repeat waves that hit populations at a fairly stable clip. For those reasons, Anice Lowen, a virologist at Emory University, anticipates that SARS-CoV-2 will continue to show “a clear wintertime seasonality in temperate regions of the world.” Winter is also a time when our bodies can be more susceptible to respiratory bugs: Cold, dry air can interfere with the movement of mucus that shuttles microbes out of the nose and throat; aridity can also make the cells that line those passageways shrivel and die; certain immune defenses might get a bit sleepier, with vitamin D in shorter supply.

    None of that precludes SARS-CoV-2 spread in the heat, even if experts aren’t sure why the virus so easily drives summer waves. Plenty of other microbes manage it: enteroviruses, polio, and more. Even rhinoviruses and adenoviruses, two of the most frequent causes of colds, tend to spread year-round, sometimes showing up in force during the year’s hottest months. (Many scientists presume that has something to do with these viruses’ relatively hardy outer layer, but the reason is undoubtedly more complex than that.) An oft-touted explanation for COVID’s summer waves is that people in certain parts of the country retreat indoors to beat the heat. But that argument alone “is weak,” Lowen told me. In industrialized nations, people spend more than 90 percent of their time indoors.

    That said, an accumulation of many small influences can together create a seasonal tipping point. Summer is a particularly popular time for travel, often to big gatherings. Many months out from winter and its numerous infections and vaccinations, population immunity might also be at a relative low at this time of year, Rivers said. Plus, for all its similarities to the flu, SARS-CoV-2 is its own beast: It has so far affected people more chronically and more severely, and has generated population-sweeping variants at a far faster pace. Those dynamics can all affect when waves manifest.

    And although certain bodily defenses do dip in the cold, data don’t support the idea that immunity is unilaterally stronger in the summer. Micaela Martinez, the director of environmental health at WE ACT for Environmental Justice, in New York, told me the situation is far more complicated than that. For years, she and other researchers have been gathering evidence that suggests that our bodies have distinctly seasonal immunological profiles—with some defensive molecules spiking in the summer and another set in winter. The consequences of those shifts aren’t yet apparent. But some of them could help explain when the coronavirus spreads. By the same token, winter is not a time of disease-ridden doom. Xaquin Castro Dopico, an immunologist at the Karolinska Institute, in Sweden, has found that immune systems in the Northern Hemisphere might be more inflammation-prone in the winter—which, yes, could make certain bouts of illness more severe but could also improve responses to certain vaccinations.

    All of those explanations could apply to COVID’s summer swings—or perhaps none does. “Everybody always wants to have a very simple seasonal answer,” Martinez told me. But one may simply not exist. Even the reasons for the seasonality of polio, a staunch summertime disease prior to its elimination in the U.S., have been “an open question” for many decades, Martinez told me.

    Rivers is hopeful that the coronavirus’s permanent patterns may already be starting to peek through: a wintry heyday, and a smaller maybe-summer hump. “We’re in year four, and we’re seeing the same thing year over year,” she told me. But some experts worry that discussions of COVID-19 seasonality are premature. SARS-CoV-2 is still so fresh to the human population that its patterns could be far from their final form. At an extreme, the patterns researchers observed during the first few years of the pandemic may not prelude the future much at all, because they encapsulate so much change: the initial lack and rapid acquisition of immunity, the virus’s evolution, the ebb and flow of masks, and more. Amid that mishmash of countervailing influences, says Brandon Ogbunu, an infectious-disease modeler at Yale, “you’re going to get some counterintuitive dynamics” that won’t necessarily last long term.

    With so much of the world now infected, vaccinated, or both, and COVID mitigations almost entirely gone, the global situation is less in flux now. The virus itself, although still clearly changing at a blistering pace, has not pulled off an Omicron-caliber jump in evolution for more than a year and a half. But no one can yet promise predictability. The cadence of vaccination isn’t yet settled; Scarpino, of Northeastern University, also isn’t ready to dismiss the idea of a viral evolution surprise. Maybe summer waves, to the extent that they’re happening, are a sign that SARS-CoV-2 will remain a microbe for all seasons. Or maybe they’re part of the pandemic’s death rattle—noise in a system that hasn’t yet quieted down.

    [ad_2]

    Katherine J. Wu

    Source link

  • Respiratory illness forces KCK school to close for the rest of the week

    Respiratory illness forces KCK school to close for the rest of the week

    [ad_1]

    A surge in an upper respiratory illness has shut down a Kansas City, Kansas, school and is filling pediatric wards around the metro area.Micah Nelson turned 9 months old on Wednesday. He’s being treated at the University of Kansas Health System for RSV and has been in and out of the pediatric ward of the hospital for about a week.”He was grunting and making a lot of noises when he was breathing. So, we knew he was having some trouble,” said Melody Nelson, Micah’s mother.”The shifts have been long. There have been a lot of admissions and bed shuffling to make sure we take care of the ill children,” said Dr. Shawn Sood, pediatric critical care physician at the University of Kansas Health System.Respiratory illnesses have shut down Christ the King School in Kansas City, Kansas, for the rest of the week. A custodial crew spent Wednesday spraying disinfectant and wiping down surfaces at the school.According to principal Cathy Fithian, 50 to 60 of the 250 students were out sick and seven of her 21 teachers have flu, RSV or COVID-19.”It was a tough decision because the protocol is not so much how many students are out when the school might close, it is how many faculty and staff. If you can’t staff your building and have teachers in the classrooms, you just can’t have school,” she said.Overland Park Regional Medical Center is reporting a 100% increase in patient volume with up to 60 children treated daily in the pediatric ER over the past few weeks with viral infections, mostly RSV.The Kansas City, Missouri Health Department reported from Oct. 23 to Oct. 30, there was an average of 90 ER visits per day for children under 18 to the emergency room for problems with flu-like symptoms, including RSV.That same week has far outpaced any other previous year since at least 2017.The Kansas City Health Department reports that children under 18 are 10 times more likely to be seen in emergency rooms for those respiratory infections than adults.Centers for Disease Control Data for the Midwest Region, which includes Kansas and Missouri, shows a significant spike in RSV cases since Oct. 1.According to the Unified Government Public Health Department, in addition to increased hospitalizations for RSV and flu, COVID-19 is still circulating in our area and is likely to increase this winter.The health department also encourages people to get flu and COVID-19 vaccines if they haven’t already done it.RSV is especially troublesome for children and infants under 2 years old.”The main treatment is supportive care, oxygen therapy and IV fluids if they need it,” Sood said.If children that young are having trouble breathing, Sood recommended seeking medical attention for them as quickly as possible. He also recommended hand washing and disinfecting surfaces to prevent the spread of respiratory illnesses like RSV.

    A surge in an upper respiratory illness has shut down a Kansas City, Kansas, school and is filling pediatric wards around the metro area.

    Micah Nelson turned 9 months old on Wednesday. He’s being treated at the University of Kansas Health System for RSV and has been in and out of the pediatric ward of the hospital for about a week.

    “He was grunting and making a lot of noises when he was breathing. So, we knew he was having some trouble,” said Melody Nelson, Micah’s mother.

    “The shifts have been long. There have been a lot of admissions and bed shuffling to make sure we take care of the ill children,” said Dr. Shawn Sood, pediatric critical care physician at the University of Kansas Health System.

    Respiratory illnesses have shut down Christ the King School in Kansas City, Kansas, for the rest of the week. A custodial crew spent Wednesday spraying disinfectant and wiping down surfaces at the school.

    According to principal Cathy Fithian, 50 to 60 of the 250 students were out sick and seven of her 21 teachers have flu, RSV or COVID-19.

    “It was a tough decision because the protocol is not so much how many students are out when the school might close, it is how many faculty and staff. If you can’t staff your building and have teachers in the classrooms, you just can’t have school,” she said.

    Overland Park Regional Medical Center is reporting a 100% increase in patient volume with up to 60 children treated daily in the pediatric ER over the past few weeks with viral infections, mostly RSV.

    The Kansas City, Missouri Health Department reported from Oct. 23 to Oct. 30, there was an average of 90 ER visits per day for children under 18 to the emergency room for problems with flu-like symptoms, including RSV.

    That same week has far outpaced any other previous year since at least 2017.

    The Kansas City Health Department reports that children under 18 are 10 times more likely to be seen in emergency rooms for those respiratory infections than adults.

    Centers for Disease Control Data for the Midwest Region, which includes Kansas and Missouri, shows a significant spike in RSV cases since Oct. 1.

    According to the Unified Government Public Health Department, in addition to increased hospitalizations for RSV and flu, COVID-19 is still circulating in our area and is likely to increase this winter.

    The health department also encourages people to get flu and COVID-19 vaccines if they haven’t already done it.

    RSV is especially troublesome for children and infants under 2 years old.

    “The main treatment is supportive care, oxygen therapy and IV fluids if they need it,” Sood said.

    If children that young are having trouble breathing, Sood recommended seeking medical attention for them as quickly as possible. He also recommended hand washing and disinfecting surfaces to prevent the spread of respiratory illnesses like RSV.

    [ad_2]

    Source link

  • The Worst Pediatric-Care Crisis in Decades

    The Worst Pediatric-Care Crisis in Decades

    [ad_1]

    At the height of the coronavirus pandemic, as lines of ambulances roared down the streets and freezer vans packed into parking lots, the pediatric emergency department at Our Lady of the Lake Children’s Hospital, in Baton Rouge, Louisiana, was quiet.

    It was an eerie juxtaposition, says Chris Woodward, a pediatric-emergency-medicine specialist at the hospital, given what was happening just a few doors down. While adult emergency departments were being inundated, his team was so low on work that he worried positions might be cut. A small proportion of kids were getting very sick with COVID-19—some still are—but most weren’t. And due to school closures and scrupulous hygiene, they weren’t really catching other infections—flu, RSV, and the like—that might have sent them to the hospital in pre-pandemic years. Woodward and his colleagues couldn’t help but wonder if the brunt of the crisis had skipped them by. “It was, like, the least patients I saw in my career,” he told me.

    That is no longer the case.

    Across the country, children have for weeks been slammed with a massive, early wave of viral infections—driven largely by RSV, but also flu, rhinovirus, enterovirus, and SARS-CoV-2. Many emergency departments and intensive-care units are now at or past capacity, and resorting to extreme measures. At Johns Hopkins Children’s Center, in Maryland, staff has pitched a tent outside the emergency department to accommodate overflow; Connecticut Children’s Hospital mulled calling in the National Guard. It’s already the largest surge of infectious illnesses that some pediatricians have seen in their decades-long careers, and many worry that the worst is yet to come. “It is a crisis,” Sapna Kudchadkar, a pediatric-intensive-care specialist and anesthesiologist at Johns Hopkins, told me. “It’s bananas; it’s been full to the gills since September,” says Melissa J. Sacco, a pediatric-intensive-care specialist at UVA Health. “Every night I turn away a patient, or tell the emergency department they have to have a PICU-level kid there for the foreseeable future.”

    I asked Chris Carroll, a pediatric-intensive-care specialist at Connecticut Children’s, how bad things were on a scale of 1 to 10. “Can I use a Spinal Tap reference?” he asked me back. “This is our 2020. This is as bad as it gets.”

    The autumn crush, experts told me, is fueled by dual factors: the disappearance of COVID mitigations and low population immunity. For much of the pandemic, some combination of masking, distancing, remote learning, and other tactics tamped down on the transmission of nearly all the respiratory viruses that normally come knocking during the colder months. This fall, though, as kids have flocked back into day cares and classrooms with almost no precautions in place, those microbes have made a catastrophic comeback. Rhinovirus and enterovirus were two of the first to overrun hospitals late this summer; now they’re being joined by RSV, all while SARS-CoV-2 remains in play. Also on the horizon is flu, which has begun to pick up in the South and the mid-Atlantic, triggering school closures or switches to remote learning. During the summer of 2021, when Delta swept across the nation, “we thought that was busy,” Woodward said. “We were wrong.”

    Children, on the whole, are more susceptible to these microbes than they have been in years. Infants already have a rough time with viruses like RSV: The virus infiltrates the airways, causing them to swell and flood with mucus that their tiny lungs may struggle to expel. “It’s almost like breathing through a straw,” says Marietta Vazquez, a pediatric-infectious-disease specialist at Yale. The more narrow and clogged the tubes get, “the less room you have to move air in and out.” Immunity accumulated from prior exposures can blunt that severity. But with the pandemic’s great viral vanishing, kids missed out on early encounters that would have trained up their bodies’ defensive cavalry. Hospitals are now caring for their usual RSV cohort—infants—as well as toddlers, many of whom are sicker than expected. Infections that might, in other years, have produced a trifling cold are progressing to pneumonia severe enough to require respiratory support. “The kids are just not handling it well,” says Stacy Williams, a PICU nurse at UVA Health.

    Coinfections, too, have always posed a threat—but they’ve grown more common with SARS-CoV-2 in the mix. “There’s just one more virus they’re susceptible to,” Vazquez told me. Each additional bug can burden a child “with a bigger hill to climb, in terms of recovery,” says Shelby Lighton, a nurse at UVA Health. Some patients are leaving the hospital healthy, only to come right back. There are kids who “have had four respiratory viral illnesses since the start of September,” Woodward told me.

    Pediatric care capacity in many parts of the country actually shrank after COVID hit, Sallie Permar, a pediatrician at NewYork-Presbyterian and Weill Cornell Medicine, whose hospital was among those that cut beds from its PICU, told me. A mass exodus of health-care workers—nurses in particular—has also left the system ill-equipped to meet the fresh wave of demand. At UVA Health, the pediatric ICU is operating with maybe two-thirds of the core staff it needs, Williams said. Many hospitals have been trying to call in reinforcements from inside and outside their institutions. But “you can’t just train a bunch of people quickly to take care of a two-month-old,” Kudchadkar said. To make do, some hospitals are doubling up patients in rooms; others have diverted parts of other care units to pediatrics, or are sending specialists across buildings to stabilize children who can’t get a bed in the ICU. In Baton Rouge, Woodward is regularly visiting the patients who have just been admitted to the hospital and are still being held in the emergency department, trying to figure out who’s healthy enough to go home so more space can be cleared. His emergency department used to take in, on average, about 130 patients a day; lately, that number has been closer to 250. “They can’t stay,” he told me. “We need this room for somebody else.”

    Experts are also grappling with how to strike the right balance between raising awareness among caregivers and managing fears that may morph into overconcern. On the one hand, with all the talk of SARS-CoV-2 being “mild” in kids, some parents might ignore the signs of RSV, which can initially resemble those of COVID, then get much more serious, says Ashley Joffrion, a respiratory therapist at Baton Rouge General Medical Center. On the other hand, if families swamp already overstretched hospitals with illnesses that are truly mild enough to resolve at home, the system could fracture even further. “We definitely don’t want parents bringing kids in for every cold,” Williams told me. The key signs of severe respiratory sickness in children include wheezing, grunting, rapid or labored breaths, trouble drinking or swallowing, and bluing of the lips or fingernails. When in doubt, experts told me, parents should call their pediatrician for an assist.

    With winter still ahead, the situation could take an even darker turn, especially as flu rates climb, and new SARS-CoV-2 subvariants loom. In most years, the chilly viral churn doesn’t abate until late winter, which means hospitals may be only at the start of a grueling few months. And still-spotty uptake of COVID vaccines among little kids, coupled with a recent dip in flu-shot uptake and the widespread abandonment of infection-prevention measures, could make things even worse, says Abdallah Dalabih, a pediatric-intensive-care specialist at Arkansas Children’s.

    The spike in respiratory illness marks a jarring departure from a comforting narrative that’s dominated the intersection of infectious disease and little children’s health for nearly three years. When it comes to respiratory viruses, little children have always been a vulnerable group. This fall may force Americans to reset their expectations around young people’s resilience and recall, Lighton told me, “just how bad a ‘common cold’ can get.”

    [ad_2]

    Katherine J. Wu

    Source link

  • Scarred Lungs and Landscapes: What’s Left When Lakes Vanish

    Scarred Lungs and Landscapes: What’s Left When Lakes Vanish

    [ad_1]

     

    A couple of times a month, Mariela Loera goes knocking on doors in California’s Eastern Coachella Valley. Part of her job, as a policy advocate with the nonprofit Leadership Counsel for Justice and Accountability, is to provide a listening ear to members of the community, many of whom work in the region’s lush farms cultivating citrus, dates, and other winter crops.

    Most of the people Loera speaks with are middle-aged mothers. At nearly every house, she hears the same thing: “One or more of my kids has asthma or some sort of respiratory illness.” If it’s summer, she might hear complaints of headaches and nosebleeds due to the poor air quality.

    “It’s the same story that’s repeated with nearly everyone I talk to,” says Loera, who has been working with community members for close to 2 years. “People are trying to understand why this is happening.”

    In most instances, whittling a disease down to a single cause is difficult, if not impossible. But in the case of the Eastern Coachella Valley, one culprit looms large: the nearby Salton Sea. “It’s definitely one of the main contributors to the air quality in the region, and therefore symptoms,” says Loera.

    The problem with the 340-square-mile Salton Sea– whose name is a misnomer, as it’s actually California’s largest lake – is that it’s shrinking. It’s a fate faced by a handful of other lakes around the country and throughout the world – the result of upstream water diversions, global warming, human mismanagement, and other factors. 

    Owens Lake in California, for instance, has shrunk to less than a third of its former area; while the Great Salt Lake in Utah reached its lowest level since 1847 this July. Iran’s Lake Urmia, once the largest lake in the Middle East, has shrunk by nearly 90% over the past 3 decades; while Bolivia’s Lake Poopó dried out completely in 2015.

    As lakes vanish, they leave behind a host of problems: wildlife declines; tourism ebbs away; people are displaced and livelihoods suffer; weather patterns are altered; and water gets scarce, which in turn impacts local agriculture and food supply

    Its impacts on human health are also severe. As the water disappears, it exposes the lakebed, or playa – which can quickly dry out to form a layer of sediment and dust, says Michael Cohen from the Pacific Institute, an Oakland, CA-based think tank that focuses on water issues. At the Salton Sea, for instance, more than 18,000 acres of shoreland has been exposed since the early 2000s.

    When winds kick up this dust, fine particulate matter “gets airborne and entrained in the air,” says Cohen, who has been studying the Salton Sea for over 2 decades. The particles “can travel for long distances and can get inhaled by people.”

    Breathing those particles can inflame the lungs, says Kent Pinkerton, PhD, a professor of pulmonary pathology at the University of California, Davis. “Inflammation is not always bad, it’s a natural process that helps in the clearance of particles.” 

    But when there’s too much dust, “you begin to see injury and damage and death of lung cells,” he says. “When particles get down into the deep lung cells that line the alveoli, where we have gas exchange and that’s extremely delicate … it can be extremely problematic.” 

    The result is respiratory issues such as asthma, allergies, and chronic sinus infections. Young children, whose immune systems and lungs are still developing, are especially vulnerable. Roughly one in five children have asthma in Imperial County, south of the Salton Sea, which also sees the highest rates of childhood asthma hospitalization and emergency room visits (double the state average).

    Left unchecked, the exposed lakebed could release up to 100 tons of dust daily, incurring some $37 billion in associated health care costs by 2047, estimates the Pacific Institute. 

    To make matters worse, extremely fine particles can penetrate the lung epithelium and enter the circulatory system, potentially causing cardiovascular problems, says Pinkerton. “This could lead to plaque formation, vascular obstruction, myocardial infarction of the heart, or just simply inflammation of the heart tissue.” Those most at risk include young children, the elderly, and those with other respiratory or heart conditions.

    Efforts to address the problems are already underway, largely focusing on suppressing dust from dried-out lake beds. This can take various forms, depending on individual lake makeup and the desired outcomes, says Armistead Russell, PhD, an air pollution expert at the Georgia Institute of Technology who was on an Owens Lake scientific advisory panel. 

    At Owens Lake – now the largest source of man-made dust in America, after it was drained in the 1920s to meet the water needs of a growing Los Angeles – the favored approach is shallow flooding, he says. The efforts have reduced air pollution levels in the area over the last 2 decades: In 2018, there were only 8 days when PM10 levels (a measure of inhalable particles 10 micrometers and smaller) exceeded healthy levels, as compared to 49 days in 2002.

    A similar solution is now being explored at the Salton Sea. But these dust suppression measures come at a steep cost: the Los Angeles Department of Water and Power had spent an estimated $2.1 billion on Owens Lake as of May 2019, and some 31% of its fresh water supplies on efforts to address the problem. Over at the Salton Sea, a project that aims to capture water and spread it across 4,000 acres of the dry lakebed is projected to cost some $206 million.

    Thankfully, there are other options too. These include covering the playa with gravel, plowing the land to roughen its surface, planting special salt-tolerant plants to hold the dust down, and building sand fences or straw bales. “The idea is to minimize or eliminate the dust from these exposed areas,” says Cohen. 

    But it isn’t just the size of the airborne particles that’s problematic; it’s their content. Dried-out beds of saline lakes, such as the Salton Sea, tend to be rich in sodium chlorine, magnesium, and other minerals. But they can also contain harmful chemicals.

    The water flowing into the Salton Sea, for instance, comes from agricultural runoff. “There’s a lot of pesticides used in the area … and some heavy metals like selenium out there too,” says Cohen. “When these enter your nervous system, they also prompt an immune response.” 

    The Aral Sea, between Kazakhstan and Uzbekistan, provides a cautionary tale. Once the world’s fourth largest saline lake, it has shrunk to 25% of its original size over the past 50 years. Its soils are contaminated with heavy metals such as lead and radium, as well as toxic pesticides like DDT leached from nearby cotton fields. This has been linked to numerous problems in the area – above-average rates of anemia, tuberculosis, kidney and liver diseases; lowered life expectancy (51 years, down from 64); and high levels of infertility and reproductive issues.

    There, local authorities have tried a different remedy: restoring the lake by reducing water withdrawals from one of its tributaries, the Syr Darya river. They’ve had moderate success.

    Physical afflictions aside, vanishing lakes can also affect the mental health of residents living close by. “Younger folk definitely talk about short-term stress, worrying about things like ‘How’s today going to go for me health-wise?’” Loera says of the people she talks to in the Eastern Coachella Valley. 

    “But also thinking about this long-term – ‘I want to go to college and do something for my community, but do I really want to stay here and continue to live here?’” she says.

    Which is why Loera and her team at the Leadership Counsel, as well as other grassroots organizations such as Comite Civico del Valle and Alianza Coachella Valley, spend time meeting with affected community members, getting them involved in efforts to save nearby lakes, listening to their health concerns, and offering advice on protection measures.

    The advice includes taking “safety measures when the air quality is not so good,” says Pinkerton. For example: staying indoors, driving with the air-conditioning on, and wearing a protective N95 mask.

    “And just being aware of your body,” he says. “If you find yourself coughing, if your eyes are irritated or watering, if you start feeling fatigued or that your heart is beating fast – these are all symptoms that should tell you: ‘OK, maybe it’s time for me to either put on that mask or go indoors and take it easy.”

    Despite the challenges that lie ahead, Loera remains upbeat. “The impressive thing to me is that the community around the Salton Sea is really resilient,” she says. “They’re really collaborative. They see the lake as part of their home.”

    [ad_2]

    Source link