Tweet from HelenBranswell at January 28, 2022 at 09:31AM
1. A short #flu 🧵
Flu activity in the US remains low for this time of year. For the week ending Jan 22, 1.9% of samples tested for flu were positive. To put that in context, in the corresponding week in 2019-20, the positivity rate was nearly 28%.
— Helen Branswell (@HelenBranswell)
Jan 28, 2022