Beginning when dogs are six weeks old, a series of four doses of combined vaccines against distemper, hepatitis, parainfluenza, and parvovirus are given two to four weeks apart. Within one year of that series, they receive a booster, which is readministered every three years. At three months old, dogs can receive a rabies vaccine, which is readministered every year or every three years.
dog Article
When do dogs need shots?
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