College athletes who suffer a concussion may take as long as a month to recover, not the two weeks considered normal, new research finds. “Normal return-to-play time was previously set at 14 days — meaning 50% of people recovered in that time,” said lead researcher Steve Broglio. He is director of the University of Michigan…  read on >  read on >

Fewer COVID-19 vaccine doses than expected will be available through the global COVAX program, affecting many less-affluent nations waiting on these doses. The United Nations forecast last week that it would have about 25% fewer vaccines to distribute through COVAX this year — 1.4 billion compared to an earlier projection for 1.9 billion doses, The…  read on >  read on >