Guinea began vaccinating against COVID-19 with the Russian Sputnik V vaccine on an experimental basis, starting with government officials, authorities said Thursday.
Florida health authorities late Thursday reported finding evidence of the latest U.S. case of the new and apparently more contagious coronavirus strain first seen in England, […]
Brazil, a nation proud of its role as a regional leader in science, technology and medicine, finds itself falling behind its neighbors in the global race […]