“Human challenge” study grants insights into COVID treatments and variants; the latest health stories from around the world
Earlier this month, researchers in the United Kingdom posted the results of a first-of-its-kind study in which healthy young volunteers were purposely infected with an early strain of the pandemic coronavirus (www.science.org/content/article/scientists-d) As hoped, none of the participants got seriously ill, and scientists were able to closely track their symptoms and gain unique insight into how both …
