Genetics

Reactivating aging stem cells in the brain

As people get older, their neural stem cells lose the ability to proliferate and produce new neurons, leading to a decline in memory function. Researchers at the University of Zurich have now discovered a mechanism linked ...

Diseases, Conditions, Syndromes

Novavax COVID-19 vaccine works, but less so against variants

Novavax Inc. said Thursday that its COVID-19 vaccine appears 89% effective based on early findings from a British study and that it also seems to work—though not as well—against new mutated versions of the virus circulating ...

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