The kicker with flu is that a person is usually infectious & transmitting before they have symptoms as well. So better to mask up generally right now.

The other wacky thing I’ve heard, is that there is some evidence suggesting that influenza might actually cause people to want to socialize in groups during the pre-symptomatic infectious phase, while they are actively breathing out little airborne viral particles. I’ll see if I can track down the study/ies on that.

But yeah, everybody would be safer if we all masked-up this flu season.