Zoonotic Diseases — MCQs

Q: Which disease does not have a known animal reservoir?

Bordetella pertussis. ***Bordetella pertussis*** - **Bordetella pertussis**, the causative agent of whooping cough, is unique among these options as it has **no known animal reservoir**. It is exclusively a human pathogen. - Transmission occurs directly from person to person via respiratory droplets, highlighting its **anthroponotic** nature. *Brucella melitensis* - **Brucella melitensis** is primarily associated with **goats and sheep**, acting as a significant animal reservoir. - Humans typically acquire brucellosis through contact with infected animals or consumption of unpasteurized dairy products. *Pasteurella multocida* - **Pasteurella multocida** is a common commensal bacterium found in the oral flora of various animals, including **cats and dogs**. - Human infections usually result from **animal bites or scratches**, demonstrating clear zoonotic transmission. *Francisella tularensis* - **Francisella tularensis**, which causes **tularemia**, has numerous animal reservoirs, including **rabbits, rodents, and ticks**. - Humans can contract tularemia through direct contact with infected animals, insect bites, or inhalation of contaminated aerosols.

Practice by Chapter

Principles of Zoonotic Transmission

Practice Questions

Viral Zoonoses

Practice Questions

Bacterial Zoonoses

Practice Questions

Parasitic Zoonoses

Practice Questions

Vector-Borne Zoonoses

Practice Questions

Foodborne Zoonoses

Practice Questions

Emerging Zoonotic Diseases

Practice Questions

One Health Approach to Zoonoses

Practice Questions

Prevention and Control of Zoonoses

Practice Questions

Occupational Exposure to Zoonoses

Practice Questions

Wildlife Reservoirs of Zoonotic Pathogens

Practice Questions

Global Impact of Zoonotic Diseases

Practice Questions

Want unlimited practice?

Get full access to all questions, explanations, and performance tracking.

Start For Free

Scan to download app