The CDC’s controversial recommendation changes are based on new studies showing that most omicron transmission takes place within five days of the onset of illness.
In places where everyone wears a mask, cases of COVID-19 seem to be less severe. Evidence from labs and outbreaks suggests that masks protect not only others, but the person wearing the mask, too.
One way that farms can handle shortages of protective gear for workers is by switching to less-toxic pest control methods.
At-home mask makers should carefully consider fit and fabric variables when designing face coverings to help prevent transmission of SARS-CoV-2.
As health care workers resort to mask reuse, a coalition of professionals compares risks, benefits of major decontamination methods.
As University facilities close, faculty and staff gather gear to pass along amid a nationwide shortage.
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