The CDC has modified its isolation and quarantine guidance several times since its major update last month.
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“I would sit and count my breaths because I didn’t know if I would survive the night,” she said.
As school absences soar in England because of covid-19 – and classroom mask-wearing guidelines are lifted – many teachers aren’t sure how best to improve ventilation amid winter temperatures
This version of the coronavirus, which scientists call BA.2, has been found in at least 40 countries, including the U.S.
With omicron infections surging around the world, many countries are changing their coronavirus testing guidelines to better deal with the new variant and the huge number of cases it is…
Amid a spike in coronavirus cases, schools across the U.S. are turning to COVID testing to try to keep kids in the classroom. While the majority of districts have stayed…
The first transplant of a pig heart genetically modified for acceptance into human bodies raises hopes for a new solution to donor organ shortages
An estimated 80% of households in Lowndes County, Alabama, have no adequate septic system.
For the first time, a human has been given a transplant of a pig’s heart. David Bennett, 57, had the operation in Baltimore, Maryland, on 7 January.