Most viruses and other germs do not spread easily on flights, the US Center for Disease Control and Prevention has said in its COVID-19 guidelines which do not recommend following social distancing between two passengers inside a plane or keeping the middle seat unoccupied.
"Most viruses and other germs do not spread easily on flights because of how air circulates and is filtered on airplanes," the CDC has said in its set of COVID-19 guidelines for air travellers.
However, it noted that the air travellers were not risk-free specially in the time of the coronavirus pandemic and recommended Americans to avoid travel as far as possible.
"Air travel requires spending time in security lines and airport terminals, which can bring you in close contact with other people and frequently touched surfaces," it said.
