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The head of the panel of 18 appointees, known as STIKO, said there was no clear case for broad use, citing a lack of data to rule out any rare side effects and no signs of the infection causing severe illness in otherwise healthy children.

A rebound of COVID-19 symptoms in some patients after taking Pfizer’s antiviral Paxlovid may be related to a robust immune response rather than a weak one, U.S. government researchers reported on Thursday.

In an interview, WHO senior adviser Bruce Aylward warned that richer nations must not step back from tackling COVID-19 as a global problem now, ahead of future potential waves of infection.

Vaccine developers have universally failed to translate any effective S. aureus vaccine from mice to humans. Researchers now understand why prior attempts failed and – importantly – what they need to do to develop an S. aureus vaccine that is effective in humans.