The variants of S-CoV-2 are getting better at travelling through the air, and people must wear tight-fitting masks and ensure better ventilation, in addition to getting vaccinated, to help stop spread of the virus that causes COVID-19, according to a study. The study, published in the journal Clinical Infectious Diseases, also found that loose-fitting cloth and surgical masks reduced the amount of virus that gets into the air around infected people by about half.
