No vomit that I've seen so far, but a lot of drool from the rabid animals. The stylized nature of the comic has the drool depicted as a sickly green or yellow, which could be triggering if vomit is an issue.
We see Elsie tell Gigi to hide under a crate to hide from rabid bats when we see her next we see she has had kittens (though judging by their size and loss they were probably hiding under the same crate
A cat is killed by a rabid wolf. Another cat is shot by humans who have been instructed to shoot any animal they see to prevent the spread of rabies. A dead cat who has been rotted to the bone is seen under a cat hoarder's couch. An rabid cat presumably dies fighting a rabid bear.