Unpacking the New WHO Controversy Over Asymptomatic COVID-19 Transmission
https://time.com/5850256/who-asymptomatic-spread/
For months, researchers have warned that people without any COVID-19 symptoms could still be silent carriers of the disease, making it that much harder to get the pandemic under control—and that much more important to take precautions like social distancing and wearing a mask, even if you feel fine.