Why is it so hard to investigate the rare side effects of COVID vaccines?
For the vast majority of people, COVID-19 vaccines are safe and effective. But further research is needed to understand the …
For the vast majority of people, COVID-19 vaccines are safe and effective. But further research is needed to understand the …
The viruses, both found in bats stored in laboratory freezers, are the first SARS-CoV-2 relatives to be found outside China. …
Why proposals to largely let the virus run its course — embraced by Donald Trump’s administration and others — could …