Coronavirus infections in the United States are up in ... saw test positivity rates rise to 5.4 percent; higher than the last week of November (4 percent) and the week before (4.5 percent).

Flu, by comparison, came up in nearly 20 percent of tests carried out across the US in the seven days to January 4. The CDC data shows that hMPV infections ... the same period last year, said ...

up from 69 outbreaks the last week of November. Numbers from the past few years show a maximum of 65 outbreaks reported during that first week of December. A norovirus infection is characterized ...