In the usual transmission cycle of bubonic plague, humans most commonly become infected through the bite of which arthropod?
Correct answer: A. An infected flea
- A. An infected flea
- B. An infected hard tick
- C. An infected female mosquito
- D. An infected biting midge
Explanation
The oriental rat flea and related fleas transmit Yersinia pestis from infected rodents to humans. Ticks, mosquitoes, and biting midges are important vectors for other pathogens but are not the usual plague vectors.
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About Veterinary Public Health and Zoonoses
Veterinary public health examines how animal health affects human health through zoonotic diseases, food safety, environmental sanitation and population disease control. Coverage includes rabies, brucellosis, tuberculosis, anthrax, avian influenza and parasitic infections, along with their reservoirs, routes of transmission, surveillance, vaccination, quarantine and prevention under the One Health approach.
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