Is it ok to take a 10 week old into the vet clinic?

[Gangle]

Need to collect my cat from the vet and will have DS, who is recovering from broncilitis, with me. Is this ok or could he be affected by germs/infections in the air?

I don't know - but just from reading the title I so wanted to post;
no, take him to the doctors like everyone else^.
Hopefully someone else will be along with proper advice, hope your ds gets better soon and the cat it ok.