You cannot eat ham sausage if you have cat plague. During cat distemper, if accompanied by severe vomiting, feeding is not recommended. Feeding and watering may irritate the cat's intestines and increase the burden on the cat's body. After the vomiting stops, you can feed the cat some easily digestible food, such as intestinal prescription cat food. Do not feed the cat greasy or strong-flavored food.

How cats can prevent feline plague:

1. Cats must be vaccinated. Cats that are vaccinated successfully will produce antibodies, which will reduce the risk of contracting feline distemper.

2. Cats living in dirty, humid, and noisy environments are more likely to get feline plague, so the cat’s accommodation environment must be kept clean and disinfected regularly.

3. The cat’s immunity can be improved through dietary conditioning. Cats should supplement more protein, fat, water, etc. to achieve balanced nutrition and improve immunity.