Monocytosis after Distemper-parvo Vaccine in dogs

119 reports to the FDA describe monocytosis in dogs given Distemper-parvo Vaccine. That is 1.8% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

119Reports

71%Marked serious

14%Recovered

23%Died or euthanised

7 daysTypical onset

How soon it started

Same day

15 14%

1–2 days

20 19%

3–7 days

20 19%

1–4 weeks

27 26%

Over a month

22 21%

How the animals did

Recovered

17 14%

Still unwell when reported

52 44%

Died

5 4.2%

Euthanised

22 18%

Not known

23 19%

Problems reported at the same time

75 63%

70 59%

68 57%

63 53%

53 45%

53 45%

50 42%

37 31%

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 monocytosis in dogs?: 119 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 7 days 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).

Monocytosis with similar medicines

Monocytosis after Rabies Vaccine 158 reports · 1.6% of its reports
Monocytosis after Bordetella Vaccine 135 reports · 1.4% of its reports
Monocytosis after Leptospirosis Vaccine 149 reports · 1.9% of its reports
Monocytosis after Lyme Vaccine 35 reports · 0.5% of its reports

All reported side effects of Distemper-parvo Vaccine in dogs · Medicines most reported with monocytosis