Veterinary Technician Practice Exam

Which of the following is a potential zoonotic disease vector?

1. Rodents

2. Insects

3. Both Rodents and Insects

4. None of the above

The correct answer is: Both Rodents and Insects

The selection of both rodents and insects as potential zoonotic disease vectors is correct because both groups can transmit diseases from animals to humans. Rodents, such as rats and mice, are known carriers of various pathogens including hantavirus, leptospirosis, and salmonella, which can be transmitted to humans through direct contact, droppings, or bites. Their ability to thrive in urban environments means they frequently come into contact with human populations, heightening the risk of disease transmission. Insects, particularly mosquitoes, ticks, and fleas, are also significant vectors for many zoonotic diseases. Mosquitoes can transmit illnesses like West Nile virus, Zika virus, and malaria, while ticks are known for spreading Lyme disease and Rocky Mountain spotted fever. Insects can be particularly effective at transmitting pathogens because they often bite and feed, allowing diseases to cross species barriers. Therefore, recognizing both rodents and insects as vectors accurately reflects their roles in the spread of zoonotic diseases, making the answer comprehensive and correct.