Attention to the Unseen

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…

Read More Read More

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…

Read More Read More

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…

Read More Read More

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…

Read More Read More

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…

Read More Read More

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…

Read More Read More

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…

Read More Read More

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,…

Read More Read More

A few people in the crowd will be responsible for the bulk of a disease’s spread. Pacific Press /LightRocket via Getty Images Elizabeth McGraw, Pennsylvania State University The coronavirus has traveled the globe, infecting one person at a time. Some sick people might not spread the virus much further, but some people infected with the SARS-CoV-2 are what epidemiologists call “superspreaders.” Elizabeth McGraw, the director of the Center for Infectious Disease Dynamics at Pennsylvania State University, explains the evidence and…

Read More Read More

Ars Technica reports: Much about how the new coronavirus spreads from one victim to the next remains a maddening mystery. But amid all the frantic efforts to understand transmission, there is one finding that appears consistent: that it is inconsistent. Some people—most, even—don’t spread the virus to anyone in the course of their infection. Others infect dozens at a time. It’s a phenomenon that looked, at first, like anomalous anecdotes—a large outbreak from a Washington choir practice, a South Korean…

Read More Read More

SFGate reports: We’ve all heard it many times: Wear a face covering — indoors, outdoors, on trains and buses. At work, in the supermarket and at church. But now a new modeling study out of Cambridge and Greenwich universities suggests that face masks may be even more important than originally thought in preventing future outbreaks of the new coronavirus. To ward off resurgences, the reproduction number for the virus (the average number of people who will contract it from one…

Read More Read More