James - he's outside a lot and since he's kinda a slave he touches a lot of material which could have germs.
Butch - just like James but he doesn't seem to touch as much things and is usually protected by one of his and Cassidy's expensive mechs or gears.
Cassidy - she does seem to do a lot of work and supplies and equipment she has could have germs on it, she's not outside very often and is the dominant one to Butch.
Jessie - she doesn't do much but she has a revealing uniform which the virus can easily get to her but she doesn't touch much things or anything so she may Not get the virus.
Meowth - Same as Jessie but he doesn't touch like.. anything, some things but very rarely, also he's a Pokémon and I've never heard of pets getting corona so far.