Three ways to prevent Covid-19 from spreading
Sneezing, coughing, talking droplets, close contact...
Droplets mix in the air to form aerosol, causes infection after inhalation
Infection after physical contact
"Wash hands & ventilate frequently, avoid crowded places, air disinfection and purification are the most useful ways to keep healthy."
Prof. Cao Bin, expert from the China Academy of Science