Grand River Transit

[tomh009]

I took it as a bus or LRT train having a higher likelihood of COVID-19 transmission than a single-person private car. But maybe my interpretation was wrong?

Using the word filthy does not express that, yes, that is probably what they meant, but it is not what they said.  The word choice seems intentional, wrt to transit.

Yes ... assuming that my interpretation was correct, that is definitely not the most appropriate word.