evidence: The viruses that cause COVID-19 and the flu spread in similar ways. They both can spread between people who are in close contact. They can spread farther when people are in a poorly ventilated indoor space. The viruses spread through respiratory droplets or aerosols released through talking, sneezing or coughing. These droplets can land in the mouth or nose of someone nearby or be inhaled. These viruses also can spread if a person touches a surface with one of the viruses on it and then touches the mouth, nose or eyes. [...] The flu vaccine doesn't prevent you from getting COVID-19. Also, research shows that getting the flu vaccine does not make you more likely to get other respiratory infections. Getting the flu vaccine may lower your risk of COVID-19 infection. [...] - Skowronski DM, et al. Influenza vaccine does not increase the risk of coronavirus or other noninfluenza respiratory viruses: Retrospective analysis from Canada, 2010-2011 to 2016-2017. Clinical Infectious Diseases. 2020; doi:10.1093/cid/ciaa626.