A second anti-microbial coating has been applied to the entire Welland Transit fleet.
The Aegis coating is a further protection measure in additional to a daily cleaning schedule set forth by the city.
A trained team working with transit agencies across the province mists the coating onto all surfaces and then wipes it off.
The protection is supposed to last for at least a year.
Aegis officials say the coating inhibits the growth of microbes by attracting bacteria to the coating's positive charge and disrupting their outer cell membranes.