A new brain-imaging study finds that participants who had even mild COVID-19 showed an average reduction in whole brain sizes.
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Former health secretary Jeremy Hunt is concerned that the U-turn on vaccine mandates for NHS staff will make it harder to implement them in the future.
Sotrovimab and baricitinib target COVID at different stages of its development, and will give doctors greater flexibility in treating omicron patients.
We overestimate how much we think others want the world to return to its pre-pandemic ways, which makes us pessimistic about the potential to make things better.