Public transport riders wide open to infection by parasites and viruses

Just when we thought we were finally starting to figure out how to make a major shift to  public transport, this troubling article shows up in the main paper in Tallinn Estonia, at the time of their introduction of a new program to create FFPT  Fare Free Public Transport.  Now someone has to figure out how to offer Germ Free Public Transport. GFPT. Quite seriously. Where do we start to work out way through this one?  Have a look and tell us what you think about it.