With covid-19 cases surging just as students are about to return from winter break, dozens of U.S. colleges are moving classes online again for at least the first week or so of the semester -- and ...

OAKLAND, Calif. - The virus surge has been straining school systems causing teachers to call out sick and some classes to go back online. District officials said all 54 schools in West Contra Costa ...

Portuguese researchers have developed the downstream section of a new streamlined production method for an emerging virus class. The team, from Instituto de Biologia Experimental e Tecnológica (iBET), ...

SOUTHFIELD, Mich. (AP) — The continued rise in coronavirus cases across Michigan and an expected surge following Christmas and the New Year has extended the holiday break for some students. Classes ...