• Dogs, cats, rabbits: 3–7 days incubation for B. bronchiseptica.
• Humans (pertussis): 7–14 days, occasionally up to 21 days.
Vaccination may delay or blunt signs but does not eliminate bacterial shedding during the incubation window.
How soon after exposure do signs appear?
Comprehensive answer, prevention tips, related terms, and key take-aways.
Key Take-Aways
- Incubation is under a week for pets, ≈10 days for humans.
- Vaccinated animals can still shed during incubation.
- Isolate newcomers for at least 7 days.