Yet More About COVID-19
Coronavirus are a type of virus which causes common colds, but can also cause more serious diseases such as SARS, MERS, or COVID – 19. The virus is only about 0.025 µm in diameter, far smaller than the human eye can see even with the best optical microscope. In comparison, a fine human hair is about 40 µm in diameter. When people talk, cough, or sneeze they eject small droplets which vary greatly in size but the average is about Read More