Vad är det som gör att så många hamnar på sjukhus den här influensasäsongen?

“We’re still in the middle of trying to figure out whether it’s producing worse illness or whether what we’re seeing is a large number of cases that are increasing, and then there’s a correspondingly similar increase in terms of the severe illness.”

https://www.scientificamerican.com/article/new-flu-variant-may-be-triggering-spike-in-severe-disease/