Why we don’t have more COVID-19 vaccines for animals

Why we don’t have more COVID-19 vaccines for animals

COVID-19 vaccines for humans number 30, while only three vaccines are available for animals, even though many species have been infected.

Jerry

Responding to COVID-19 outbreaks at more than 200 mink farms, the Danish government, in November 2020, culled its entire mink population. The Danish armed forces helped farmers slaughter each of their 17 million minks, which are normally farmed for their valuable fur.

The SARS-CoV-2 virus, said officials, spread from human handlers to the small, ferret-like animals, mutated, and then spread back to several hundred humans. Although the mass extermination faced much criticism, Denmark’s prime minister defended the decision last month, stating that the step was “necessary” and that the Danish government had “a responsibility for the health of the entire world.”

Over the past two and half years, COVID-19 infections have been reported in numerous animal species around the world. In addition to the Danish minks, there is other evidence that the virus can mutate as it’s transmitted back and forth between humans and animals, which increases the risk to public health. According to the World Health Organisation (WHO), COVID-19 vaccines for animals may protect the infected species and prevent the transmission of viral mutations. However, the development of such vaccines has been slow. Scientists attribute the deficiency to a lack of data.

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Puja Changoiwala
Puja Changoiwala is an award-winning journalist and author based in Mumbai. She writes about the intersections of gender, crime, technology, social justice and human rights in India. She tweets @cpuja.
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Scientists discover the Achilles' heel (or head) of PFAS, cancer-causing chemicals

Brittany Trang led research on a new way to destroy "forever chemicals," which cause a litany of health problems, while working in William Dichtel’s chemistry lab at Northwestern University.

Northwestern University

Brittany Trang was staring at her glass test tube, which suddenly turned opaque white. At first, she had thought that the chemical reaction she tested left behind some residue, but when she couldn’t clean it off, she realized that the reaction produced corrosive compounds that ate at the glass. That, however, was a good sign. It meant that the reaction, which she didn’t necessarily expect to work, was in fact, working. And Trang, who in 2020 was a Ph.D. researcher in chemistry at Northwestern University, had reasons to be skeptical. She was trying to break down the nearly indestructible molecules of per- and polyfluoroalkyl substances or PFAS—the forever chemicals called so because they resist heat, oil, stains, grease, and water, and thus don’t react or break down in the environment.

“The first time I ran this, I was like, oh, like there's a bunch of stuff stuck to the glass, but when I tried to clean it, it wasn’t coming off,” Trang says, recalling her original experiment and her almost-disbelief at the fact she managed to crack the notoriously stubborn and problematic molecules. “I was mostly just surprised that it worked in general.”

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Lina Zeldovich
Lina Zeldovich has written about science, medicine and technology for Scientific American, Reader’s Digest, Mosaic Science and other publications. She’s an alumna of Columbia University School of Journalism and the author of the upcoming book, The Other Dark Matter: The Science and Business of Turning Waste into Wealth, from Chicago University Press. You can find her on http://linazeldovich.com/ and @linazeldovich.
Podcast: The Friday Five Weekly Roundup in Health Research

In this week's Friday Five, a new face mask can detect Covid and send an alert to your phone. Plus, promising research for a breakthrough drug to treat schizophrenia, an AI tool that can create new proteins, progress on a longevity drug - and more.

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The Friday Five covers five stories in research that you may have missed this week. There are plenty of controversies and troubling ethical issues in science – and we get into many of them in our online magazine – but this news roundup focuses on scientific creativity and progress to give you a therapeutic dose of inspiration headed into the weekend.

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Matt Fuchs

Matt Fuchs is the editor-in-chief of Leaps.org. He is also a contributing reporter to the Washington Post and has written for the New York Times, Time Magazine, WIRED and the Washington Post Magazine, among other outlets. Follow him on Twitter @fuchswriter.