Observe
Tiredness, mild soreness, a small temporary swelling, mild fever or a short-lived appetite decrease may occur. Call if signs worsen, persist or concern you.
INTERACTIVE PREVENTIVE-CARE GUIDE
Vaccination guidance,
placed in context.
Select an animal, vaccination and U.S. locality. See where geography strengthens the discussion—and where age, lifestyle, law, travel or exposure matters more than a state boundary.
START WITH THE ANIMAL
A map can inform a conversation. It cannot prescribe a vaccine plan.
Recommendations are drawn from national veterinary guidance and public-health surveillance. Local disease activity changes, and laws may differ by county or municipality. The final plan belongs with a veterinarian who knows the animal’s age, health, vaccination history, pregnancy status, travel and exposure.
FIND YOUR LOCALITY
Search by ZIP code or city
Results are used only to select a county; they do not create an individualized medical recommendation.U.S. COUNTY-LEVEL GUIDANCE MAP
DAPP / DA2PP
Broadly recommended / coreStronger risk-based discussionIndividual/local discussionNot routinely recommended by geography alone
How to read this county map: County boundaries improve locality selection, but color is shown only at the finest defensible evidence level. Many vaccines have no complete national county dataset. Core status, lifestyle, current outbreaks, travel and local law may matter more than a county’s color.
VACCINE SAFETY
Most reactions are mild. Serious reactions are uncommon.
Rates vary with species, size, age, product, vaccines given together, study definitions and reporting. An event after vaccination is not automatically proven to have been caused by it.
38.2 per 10,000about 0.38%
events recorded within 3 days in a large 2002–2003 U.S. study. This includes mild and serious events; it is not an anaphylaxis rate. Review the study ↗
Get advice
Persistent vomiting or diarrhea, hives, facial swelling, marked weakness, significant pain or an enlarging injection-site lump needs guidance.
Seek care now
Difficulty breathing, collapse, blue or very pale gums, repeated vomiting or rapidly progressing facial swelling may indicate anaphylaxis.
Do not premedicate or give human medication unless the veterinarian directs the exact product and dose. Report pregnancy, illness, immune-suppressing medication and prior reactions before vaccination. Cats: review the 3-2-1 injection-site rule.
METHOD & LIMITATIONS
Why some maps are one color.
Core vaccines are broadly recommended because the disease is severe, widespread, zoonotic, legally regulated or otherwise important enough that geography does not remove the need. Lifestyle vaccines may show one discussion level nationwide because boarding, group contact, escape and travel are more informative than location.
Regional highlighting is used only where an authoritative guideline or surveillance source supports a meaningful geographic pattern. Human surveillance—such as the Centers for Disease Control and Prevention Lyme map—is a regional signal, not a direct measure of canine cases.
Content last reviewed: August 26, 2026
Review status: Veterinary-informed; independent veterinarian review not yet completed.