Study hints, can't prove, survivor plasma fights COVID-19

Mayo Clinic researchers reported a strong hint that blood plasma from COVID-19 survivors helps other patients recover, but it’s not proof and some experts worry if, amid clamor for the treatment, they'll ever get a clear answer.

Debate begins for who's first in line for COVID-19 vaccine

Traditionally, first in line for a scarce vaccine are health workers and the people most vulnerable to the targeted infection. But one doctor tossed new ideas into the mix: Consider geography and give priority to people where an outbreak is hitting hardest.