Federal health officials could reduce the quarantine from the currently recommended 14 days to as few as seven for people who test negative for the virus.
Officials and scientists fought misinformation with data and clear communication — offering a game plan for the rollout of Covid-19 vaccines, experts say.
Moderna is the second company to report preliminary results from a large trial testing a vaccine. But there are still months to go before it will be widely available to the public.
The furious race to develop a coronavirus vaccine played out against a presidential election, between a pharmaceutical giant and a biotech upstart, with the stakes as high as they could get.
Poor-performing organ collection agencies face closure and takeover.