There is no refuting that illnesses spread more easily on the tube - see recent research
ehjournal.biomedcentral.com/track/pdf/10.1186/s12940-018-0427-5
The RMT have sent the following to the Mayor. I would like to suggest that anyone regularly using the tube demands from their MPs etc that the tube cleaning measures are raised as they have been in New York
www.rmt.org.uk/news/rmt-demands-action-from-london-mayor-over-coronavirus/