In case you're not sure what's up with respiratory diseases like #COVID and #Flu (#influenza), it's worthwhile to take a look at the CDC #wastewater surveillance:

https://www.cdc.gov/nwss/rv/InfluenzaA-nationaltrend.html

I'll be asking my kids to wear a KN95 / KF94 mask daily for the next 3 weeks at school.