Air travel is currently on hold to check the spread of Covid-19, but a new study of 1,364 airports worldwide has found that if flights resume, cases could spread unevenly across the globe, with many of the airports in India and China posing the highest risk for the spread. The study says India’s population density and frequent domestic travel put it at high risk for outbreaks from infected passengers arriving from within the country.
The study estimates the risk for initiating an outbreak at various airports, after deriving these values from variables such as local population density and basic reproduction number.
