considering how sars2 may be infecting through aerosols, it might not be a great idea to cycle for high-risk people . OTOH, keeping people outdoors reduces the infection rate by 19 times , and the sunlight kills the virus in 3 minutes, so anything that promotes outdoor instead of indoor congregations is good

https://www.sciencedirect.com/science/article/pii/S016041202...

https://news.yahoo.com/sunlight-destroys-coronavirus-very-qu...