Covid virus does survive on some surfaces for 'days to weeks' By IANS | 5 Views Photo for representation. Image Source: IANS News New Delhi, April 20 : As a multi-research team from the UK, the US and Canada warned in a Lancet study last week that SARS-CoV-2 virus, which causes Covid-19, is predominantly transmitted through the air, Indian experts on Tuesday said that such understanding already exists and while further research is required to support this claim, people need to be wary of both air and surface transmissions. The researchers in the Lancet study found little to no evidence that the virus spreads easily via large droplets, which fall quickly through the air and contaminate surfaces.