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Category: Science

Another Covid-19 disparity: Black and Hispanic Americans are dying at younger ages than white Americans

Another Covid-19 disparity: Black and Hispanic Americans are dying at younger ages than white Americans

STAT reports: Long after calls for more data on the disproportionate number of Covid-19 infections and deaths among Black Americans and Hispanic Americans, the Centers for Disease Control and Prevention on Friday released limited additional information, which revealed non-white and Hispanic Americans under age 65 are dying in greater numbers than white people in that age group. The agency reported that more than a third of deaths among Hispanic Americans (34.9%) and almost a third of deaths among non-white Americans…

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Retractions and controversies over coronavirus research show that the process of science is working as it should

Retractions and controversies over coronavirus research show that the process of science is working as it should

A high-profile paper on the risks of hyrdoxychloroquine was recently and rightfully retracted. AP Photo/John Locher, By Mark R. O’Brian, University at Buffalo, The State University of New York Several high-profile papers on COVID-19 research have come under fire from people in the scientific community in recent weeks. Two articles addressing the safety of certain drugs when taken by COVID-19 patients were retracted, and researchers are calling for the retraction of a third paper that evaluated behaviors that mitigate coronavirus…

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Spain’s coronavirus antibodies study adds evidence against herd immunity

Spain’s coronavirus antibodies study adds evidence against herd immunity

CNN reports: Spain’s large-scale study on the coronavirus indicates just 5% of its population has developed antibodies, strengthening evidence that a so-called herd immunity to Covid-19 is “unachievable,” the medical journal the Lancet reported on Monday. The findings show that 95% of Spain’s population remains susceptible to the virus. Herd immunity is achieved when enough of a population has become infected with a virus or bacteria — or vaccinated against it — to stop its circulation. The European Center for…

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Mounting evidence the coronavirus is airborne, 239 experts say

Mounting evidence the coronavirus is airborne, 239 experts say

The New York Times reports: The coronavirus is finding new victims worldwide, in bars and restaurants, offices, markets and casinos, giving rise to frightening clusters of infection that increasingly confirm what many scientists have been saying for months: The virus lingers in the air indoors, infecting those nearby. If airborne transmission is a significant factor in the pandemic, especially in crowded spaces with poor ventilation, the consequences for containment will be significant. Masks may be needed indoors, even in socially-distant…

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Going to the beach during the pandemic may not be as reckless as it’s portrayed

Going to the beach during the pandemic may not be as reckless as it’s portrayed

Zeynep Tufekci writes: We’ve entered another risky, uncertain phase of America’s pandemic summer. COVID-19 cases are surging across most states, and once again, intensive-care units are filling up. Eighteen states have either paused or rolled back their plans to reopen, and even Republican governors who previously resisted public-health guidelines about masks are now asking people to mask up. So why on Earth do so many articles about this crisis feature pictures of people frolicking on wide-open beaches? Why is an…

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DNA linked to severe Covid-19 was inherited from Neanderthals, study finds

DNA linked to severe Covid-19 was inherited from Neanderthals, study finds

The New York Times reports: A stretch of DNA linked to Covid-19 was passed down from Neanderthals 60,000 years ago, according to a new study. Scientists don’t yet know why this particular segment increases the risk of severe illness from the coronavirus. But the new findings, which were posted online on Friday and have not yet been published in a scientific journal, show how some clues to modern health stem from ancient history. “This interbreeding effect that happened 60,000 years…

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The link between restaurant spending and new cases of coronavirus

The link between restaurant spending and new cases of coronavirus

CNBC reports: Higher restaurant spending appears to be linked to a faster spread of the coronavirus, according to a JPMorgan study. Analyst Jesse Edgerton analyzed data from 30 million Chase credit and debit cardholders and from Johns Hopkins University’s case tracker. He found that increased restaurant spending in a state predicted a rise in new infections there three weeks later. He also said restaurant spending was the strongest predictor across all categories of card spending. The United States set a…

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How the coronavirus escapes an evolutionary trade-off that helps keep other pathogens in check

How the coronavirus escapes an evolutionary trade-off that helps keep other pathogens in check

An artistic rendering of SARS-CoV-2, the virus that causes the COVID-19 illness. Getty Images / s-cphoto By Athena Aktipis, Arizona State University and Joe Alcock, University of New Mexico Viruses walk a fine line between severity and transmissibility. If they are too virulent, they kill or incapacitate their hosts; this limits their ability to infect new hosts. Conversely, viruses that cause little harm may not be generating enough copies of themselves to be infectious. But SARS-CoV-2, the coronavirus that causes…

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The right way to breathe during the coronavirus pandemic

The right way to breathe during the coronavirus pandemic

Breathing in through the nose is an integral part of meditation and delivers virus-fighting gases to the lungs. triloks / Getty Images By Louis J. Ignarro, University of California, Los Angeles Inhale through your nose and exhale through your mouth. It’s not just something you do in yoga class – breathing this way actually provides a powerful medical benefit that can help the body fight viral infections. The reason is that your nasal cavities produce the molecule nitric oxide, which…

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The origin of scientists

The origin of scientists

Jessica Riskin writes: A few years ago, when my daughter was in middle school, she had to study for a quiz on “the five steps of the scientific method.” She had no problem memorizing five words in a given order, but she also had to be ready to explain them, and there she ran into trouble, until she was seized by a bright idea: here was a chance for her mother, who taught and wrote about the history of science,…

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You may have antibodies after coronavirus infection. But not for long

You may have antibodies after coronavirus infection. But not for long

The New York Times reports: It’s a question that has haunted scientists since the pandemic began: Does everyone infected with the virus produce antibodies — and if so, how long do they last? Not very long, suggests a new study published Thursday in Nature Medicine. Antibodies — protective proteins made in response to an infection — may last only two to three months, especially in people who never showed symptoms while they were infected. The conclusion does not necessarily mean…

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COVID-19’s deadliness for men is revealing why researchers should have been studying immune system sex differences years ago

COVID-19’s deadliness for men is revealing why researchers should have been studying immune system sex differences years ago

Reports show that the mortality rate among men with COVID-19 is higher than women. Marco Mantovani/Getty Images By Adam Moeser, Michigan State University When it comes to surviving critical cases of COVID-19, it appears that men draw the short straw. Initial reports from China revealed the early evidence of increased male mortality associated with COVID. According to the Global Health 50/50 research initiative, nearly every country is now reporting significantly higher COVID-19-related mortality rates in males than in females as…

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The invisible world of airborne particles

The invisible world of airborne particles

The New York Times reports: When Linsey Marr’s son started attending day care 12 years ago, she noticed that he kept getting sick with the sniffles and other minor illnesses. But unlike most parents, Dr. Marr, an aerosol scientist at Virginia Tech, tried to figure out why. “When I’d pick him up, I’d find out that more than half the kids in the room were sick too,” said Dr. Marr. “I was really curious, and wondered, if it was spreading…

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Growing consensus on how people contract Covid-19

Growing consensus on how people contract Covid-19

The Wall Street Journal reports: Six months into the coronavirus crisis, there’s a growing consensus about a central question: How do people become infected? It’s not common to contract Covid-19 from a contaminated surface, scientists say. And fleeting encounters with people outdoors are unlikely to spread the coronavirus. Instead, the major culprit is close-up, person-to-person interactions for extended periods. Crowded events, poorly ventilated areas and places where people are talking loudly—or singing, in one famous case—maximize the risk. These emerging…

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To understand who’s dying of Covid-19, look to social factors like race more than preexisting diseases

To understand who’s dying of Covid-19, look to social factors like race more than preexisting diseases

STAT reports: While early studies of who was dying of Covid-19 identified risks such as obesity and having diabetes, there is a growing realization that those initial conclusions might have been misleading, obscuring a more significant explanation. As researchers pull back their lens from individuals to population-level risk factors, they’re finding that, in the U.S., race may be as important as age in gauging a person’s likelihood of dying from the disease. The higher the percentage of Black residents in…

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Uncertain recovery: The emerging long-term complications of Covid-19

Uncertain recovery: The emerging long-term complications of Covid-19

Vox reports: At first, Lauren Nichols tried to explain away her symptoms. In early March, the healthy 32-year-old felt an intense burning sensation, like acid reflux, when she breathed. Embarrassed, she didn’t initially seek medical care. When her shortness of breath kept getting worse, her doctor tested her for Covid-19. Her results came back positive. But for Nichols, that was just the beginning. Over the next eight weeks, she developed wide and varied symptoms, including extreme and chronic fatigue, diarrhea,…

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