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In the PNAS Early Edition this week, researchers in New Hampshire and Ohio report that cofactor molecules are an integral part of infectious prions. The team shows that withdrawal of cofactor molecules during serial propagation of purified recombinant prions causes a reduction in specific infectivity and an adaptation of prions containing misfolded proteins.

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President Donald Trump might not approve the stricter standards the US Food and Drug Administration is developing for authorizing a SARS-CoV-2 vaccine, according to Politico.

Wired reports that Oxitec has now developed a genetically modified fall armyworm.

A large genetic study finds SARS-CoV-2 viruses with a certain variant are spreading more than others, according to the Washington Post.

In Nature this week: sister-chromatid-sensitive chromosome conformation capture approach, and more.