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Category: Health

How the world made so much progress on a Covid-19 vaccine so fast

How the world made so much progress on a Covid-19 vaccine so fast

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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Medieval onion and garlic remedy kills antibiotic-resistant biofilms in the lab

Medieval onion and garlic remedy kills antibiotic-resistant biofilms in the lab

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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America’s coronavirus epidemic had one epicenter but now it has many

America’s coronavirus epidemic had one epicenter but now it has many

The New York Times reports: Once again, the coronavirus is ascendant. As infections mount across the country, it is dawning on Americans that the epidemic is now unstoppable, and that no corner of the nation will be left untouched. As of Wednesday, the pathogen had infected at least 4.3 million Americans, killing more than 150,000. Many experts fear the virus could kill 200,000 or even 300,000 by year’s end. Even President Trump has donned a mask, after resisting for months,…

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School closures in spring linked to drastic decrease in Covid-19 cases and deaths

School closures in spring linked to drastic decrease in Covid-19 cases and deaths

STAT reports: When state officials were deciding whether to shutter their schools back in March, the evidence they had to work with was thin. They knew kids easily catch and spread influenza — and that school holidays and closures have helped slow its spread. But they weren’t sure if the same was true for Covid-19. Now, a study published Wednesday in the Journal of the American Medical Association shows that closing all of a state’s schools was associated with a…

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Kelp extracts show promise in blocking Covid-19

Kelp extracts show promise in blocking Covid-19

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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The tragedy of vaccine nationalism

The tragedy of vaccine nationalism

Thomas J. Bollyky and Chad P. Bown write: Trump administration officials have compared the global allocation of vaccines against the coronavirus that causes COVID-19 to oxygen masks dropping inside a depressurizing airplane. “You put on your own first, and then we want to help others as quickly as possible,” Peter Marks, a senior official at the U.S. Food and Drug Administration who oversaw the initial phases of vaccine development for the U.S. government, said during a panel discussion in June….

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Hong Kong was a pandemic poster child. Now it’s a cautionary tale

Hong Kong was a pandemic poster child. Now it’s a cautionary tale

The Washington Post reports: At the start of this month, restaurants here had wait-lists, bars were overflowing, and beaches were dotted with umbrellas and sand seekers. Three weeks had elapsed since the last locally transmitted novel coronavirus case, and the pandemic appeared to be down, if not entirely beaten. All of that progress has come to a halt, as government missteps and a mutated strain of the coronavirus have led to the most severe wave of infections in Hong Kong…

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Covid-19 hygiene theater

Covid-19 hygiene theater

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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Covid-19 infections leave an impact on the heart, raising concerns about lasting damage

Covid-19 infections leave an impact on the heart, raising concerns about lasting damage

STAT reports: Two new studies from Germany paint a sobering picture of the toll that Covid-19 takes on the heart, raising the specter of long-term damage after people recover, even if their illness was not severe enough to require hospitalization. One study examined the cardiac MRIs of 100 people who had recovered from Covid-19 and compared them to heart images from 100 people who were similar but not infected with the virus. Their average age was 49 and two-thirds of…

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In social insects, researchers find hints for controlling disease

In social insects, researchers find hints for controlling disease

By Michael Schulson, July 22, 2020 Given that she infects ant colonies with deadly pathogens and then studies how they respond, one might say that Nathalie Stroeymeyt, a senior lecturer in the school of biological sciences at the University of Bristol in the U.K., specializes in miniature pandemics. The tables turned on her, however, in March: Covid-19 swept through Britain, and Stroeymeyt was shut out of her ant epidemiology lab. The high-performance computers she uses to track ant behavior sat…

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How California went from coronavirus success story to disaster — and how it can regain control

How California went from coronavirus success story to disaster — and how it can regain control

George Rutherford writes: In the early stages of the coronavirus pandemic, California seemed to be a success story. Today, however, the state’s case count is surging, recently topping 400,000 total and surpassing New York. Compared with levels around Memorial Day in Southern California and around the second week in June in Northern California, daily cases have increased fourfold. In recent weeks, the average number of daily deaths statewide has increased by 50 percent. What is driving this surge, and how…

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Coronavirus ravaged Florida, as Ron DeSantis sidelined scientists and followed Trump

Coronavirus ravaged Florida, as Ron DeSantis sidelined scientists and followed Trump

The Washington Post reports: As Florida became a global epicenter of the coronavirus, Gov. Ron DeSantis held one meeting this month with his top public health official, Scott Rivkees, according to the governor’s schedule. His health department has sidelined scientists, halting briefings last month with disease specialists and telling the experts there was not sufficient personnel from the state to continue participating. “I never received information about what happened with my ideas or results,” said Thomas Hladish, a University of…

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Ancient microbial arms race sharpened our immune system — but also left us vulnerable

Ancient microbial arms race sharpened our immune system — but also left us vulnerable

Ann Gibbons writes: At a recent symposium on the evolution of infectious diseases, University of California, San Diego (UCSD), pathologist Nissi Varki noted that humans suffer from a long list of deadly diseases—including typhoid fever, cholera, mumps, whooping cough, measles, smallpox, polio, and gonorrhea—that don’t afflict apes and most other mammals. All of those pathogens follow the same well-trodden pathway to break into our cells: They manipulate sugar molecules called sialic acids. Hundreds of millions of these sugars stud the…

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Corporate insiders pocket $1 billion in rush for coronavirus vaccine

Corporate insiders pocket $1 billion in rush for coronavirus vaccine

The New York Times reports: On June 26, a small South San Francisco company called Vaxart made a surprise announcement: A coronavirus vaccine it was working on had been selected by the U.S. government to be part of Operation Warp Speed, the flagship federal initiative to quickly develop drugs to combat Covid-19. Vaxart’s shares soared. Company insiders, who weeks earlier had received stock options worth a few million dollars, saw the value of those awards increase sixfold. And a hedge…

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A vaccine reality check

A vaccine reality check

The Atlantic reports: Nearly five months into the pandemic, all hopes of extinguishing COVID-19 are riding on a still-hypothetical vaccine. And so a refrain has caught on: We might have to stay home—until we have a vaccine. Close schools—until we have a vaccine. Wear masks—but only until we have a vaccine. During these months of misery, this mantra has offered a small glimmer of hope. Normal life is on the other side, and we just have to wait—until we have…

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New antibody mix could form ‘very potent’ Covid-19 treatment, say scientists

New antibody mix could form ‘very potent’ Covid-19 treatment, say scientists

The Guardian reports: Researchers have identified a potent cocktail of antibodies that may help doctors treat Covid-19 infections and protect people at risk from falling ill with the disease. The antibodies were collected from patients hospitalised with severe Covid-19, and they could be manufactured at scale by pharmaceutical firms and transfused into the blood to fight the virus or prevent it from taking hold. Scientists at Columbia University in New York screened antibodies from 40 Covid-19 patients and identified 61…

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