Attention to the Unseen

Scientific American reports: COVID-19 triggers a strong immune response in most people. Yet several recent studies observed that the amounts of antibodies in those recovering from the virus appear to decline within a few months of infection. The findings set off a frenzy of speculation that immunity to the virus may not last long, throwing cold water on hopes for a vaccine. Many scientists say such worries are overblown, however. A June 18 Nature Medicine study conducted with a small…

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The New York Times reports: Five months after the coronavirus outbreak engulfed New York City, riders are still staying away from public transportation in enormous numbers, often because they are concerned that sharing enclosed places with strangers is simply too dangerous. But the picture emerging in major cities across the world suggests that public transportation may not be as risky as nervous New Yorkers believe. In countries where the pandemic has ebbed, ridership has rebounded in far greater numbers than…

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STAT reports: Never before have prospective vaccines for a pathogen entered final-stage clinical trials as rapidly as candidates for Covid-19. Just six months ago, when the death toll from the coronavirus stood at one and neither it nor the disease it caused had a name, a team of Chinese scientists uploaded its genetic sequence to a public site. That kicked off the record-breaking rush to develop vaccines — the salve that experts say could ultimately quell the pandemic. The colossal…

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Science Alerts reports: As deadly bacteria grow ever more resistant to modern antibiotics, some researchers have turned to ancient medical manuscripts for clues. And it looks like a medieval salve dating back 1,000 years might succeed where many modern antibiotics are starting to fail. The “ancientbiotic”, as the researchers are calling it, was found in one of the earliest known medical textbooks from medieval England, known as Bald’s Leechbook. While many of the remedies included in this tome have not…

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The Fish Site reports: A range of polysaccharides extracted from edible seaweed have been shown to at least match the efficacy of remdesivir, the current standard antiviral used to combat Covid-19, in new lab-based trials. The study, the results of which have recently been published in Cell Discovery, tests antiviral activity in three variants of heparin (heparin, trisulfated heparin, and a non-anticoagulant low molecular weight heparin) and two fucoidans (RPI-27 and RPI-28) extracted from the seaweed Saccharina japonica. All five…

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Derek Thompson writes: As a covid-19 summer surge sweeps the country, deep cleans are all the rage. National restaurants such as Applebee’s are deputizing sanitation czars to oversee the constant scrubbing of window ledges, menus, and high chairs. The gym chain Planet Fitness is boasting in ads that “there’s no surface we won’t sanitize, no machine we won’t scrub.” New York City is shutting down its subway system every night, for the first time in its 116-year history, to blast…

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Shannon Hall writes: As the new coronavirus continues to burn through populations, studies are beginning to shed light on its impact on infants. And so far the findings have been promising for parents and researchers alike. The initial data suggest that infants make up a small fraction of people who have tested positive for COVID-19. A Centers for Disease Control and Prevention study released in April reported 398 infections in children under one year of age—roughly 0.3 percent of all…

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The New York Times reports: Each workday morning in March, Noe Mercado drove through the desolate streets of Boston to a tall glass building on Blackfan Circle, in the heart of the city’s biotech hub. Most residents had gone into hiding from the coronavirus, but Mr. Mercado had an essential job: searching for a vaccine against this new, devastating pathogen. Parking in the underground lot, he put on a mask and rode the empty elevator to the tenth floor, joining…

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Aerosols are made up of tiny respiratory droplets suspended in the air. Jeffrey Coolidge via Getty Images Byron Erath, Clarkson University; Andrea Ferro, Clarkson University, and Goodarz Ahmadi, Clarkson University When someone coughs, talks or even breathes, they send tiny respiratory droplets into the surrounding air. The smallest of these droplets can float for hours, and there is strong evidence that they can carry live coronavirus if the person is infected. Until this week, however, the risk from these aerosols…

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The Guardian reports: People who have recovered from Covid-19 may lose their immunity to the disease within months, according to research suggesting the virus could reinfect people year after year, like common colds. In the first longitudinal study of its kind, scientists analysed the immune response of more than 90 patients and healthcare workers at Guy’s and St Thomas’ NHS foundation trust and found levels of antibodies that can destroy the virus peaked about three weeks after the onset of…

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WIRED interviews epidemiologist, Larry Brilliant: WIRED: We talked 100 days ago. What is different about the pandemic now? Larry Brilliant: A hundred days ago we didn’t really understand the pathophysiology—the way the virus and the human body interact, the illness as opposed to the epidemic. The unexpected things that it’s doing are not epidemiological—they are virological. In March, we were just beginning to see these horrific CT scans or x-rays of people with ARDS, acute respiratory distress syndrome, where they…

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