Fever after Distemper-parvo Vaccine in cats

20 reports to the FDA describe fever in cats given Distemper-parvo Vaccine. That is 7.2% of all reports for this medicine, compared with 3.2% across reports for all cat medicines, so it is reported unusually often with this medicine.

20Reports

90%Marked serious

40%Recovered

10%Died or euthanised

1 daysTypical onset

How soon it started

Same day

7 37%

1–2 days

5 26%

3–7 days

4 21%

1–4 weeks

3 16%

Over a month

0 0.0%

How the animals did

Recovered

8 40%

Still unwell when reported

3 15%

Died

1 5.0%

Euthanised

1 5.0%

Not known

7 35%

Problems reported at the same time

10 50%

10 50%

6 30%

4 20%

4 20%

3 15%

Weight loss

3 15%

Neutrophilia

2 10%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: vaccine.

Mild, short-lived lethargy, soreness or a small lump at the injection site are the most commonly reported vaccine reactions.

Questions owners ask

Can Distemper-parvo Vaccine cause fever in cats?: 20 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within 1 day of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Fever with similar medicines

Fever after Rabies Vaccine 417 reports · 16% of its reports
Fever after Feline Core Vaccine 429 reports · 28% of its reports
Fever after Feline Leukemia Vaccine 170 reports · 21% of its reports

All reported side effects of Distemper-parvo Vaccine in cats · Medicines most reported with fever