South Africa suspended its vaccination campaign against COVID-19 Sunday after a new study revealed that the AstraZeneca vaccine is less effective against a variant of the virus found in the country. The study, conducted by the University of the Witwate…

Millions of fans are getting ready to watch the televised annual U.S. football game known as the Super Bowl. Health officials, afraid that the viewing could become a COVID-19 superspreader event, have urged people to watch the game only with “the peopl…