"Infectious projectiles can travel up to 6 feet from the infected person.” #COVID19https://t.co/YbnDJcuFfc — Popular Science (@PopSci) March 3, 2020 View on Twitter posted by
"Infectious projectiles can travel up to 6 feet from the infected person.” #COVID19https://t.co/YbnDJcuFfc — Popular Science (@PopSci) March 3, 2020 View on Twitter posted by