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Vaccines

The FDA’s new COVID-19 vaccine guidance is here. Now what?

Agency appointees appear to sidestep advisory committees


US labs could get more time to meet EPA’s methylene chloride rule

The agency’s proposal would give nonfederal labs an additional 18 months to comply with workplace safety and other requirements

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Gene Editing

Efficient gene insertion in human cells

A CRISPR-guided transposase called evoCAST inserts genes into human DNA in a single step


2025 Welch Award honors chemical biologists

Recipients Schreiber and Schultz will each receive $500K prize for work on chemical probes, unnatural amino acids, and new therapeutics


Protein catalysts designed to do non-natural chemistry

Researchers couple AI and chemical know-how to create tools for cyclopropanation and silylation reactions