COVID-19: Omicron raises questions of pandemic's origins - analysis
HEALTH AFFAIRS: The world faces diminishing returns in its policy options as it struggles to confront a new variant.
A nurse prepares a dose of the Soberana 02 vaccine during its clinical trials at a hospital amid concerns about the spread of the coronavirus disease (COVID-19) in Havana, Cuba, June 29, 2021.(photo credit: REUTERS/ALEXANDRE MENEGHINI/FILE PHOTO)BySETH J. FRANTZMANUpdated:
