Stress and Bb can cause URTD

Cats in multicat homes, cat shelters, breeders and catteries are at risk from
Bordetella bronchiseptica and URTD due to the effects of stress.
Prevention is the best protection

Vaccinating is the best way of protecting against
Bordetella bronchiseptica. Read about intranasal vaccination and how it can stop
Bb at the point of infection.