Zoonotic disease is/are transmitted by -a) Ticksb) Rat fleac) Sand flyd) Mosquitoe) Mite
**Core Concept**
Zoonotic diseases are infectious agents that can be transmitted from animals to humans, such as rabies, Lyme disease, and plague. This concept highlights the importance of animal hosts in the transmission of diseases to humans.
**Why the Correct Answer is Right**
Zoonotic diseases can be transmitted through various vectors, including ticks, rat fleas, sand flies, mosquitoes, and mites. For example, ticks transmit Lyme disease and Rocky Mountain spotted fever, while rat fleas transmit bubonic plague. Sand flies transmit leishmaniasis, and mosquitoes transmit malaria and dengue fever. Mites can transmit scrub typhus and rickettsialpox. These vectors play a crucial role in the transmission of zoonotic diseases from animals to humans.
**Why Each Wrong Option is Incorrect**
* **Option A:** While ticks are a correct answer, there is no need to select only one option, as multiple vectors can transmit zoonotic diseases.
* **Option B:** Rat fleas are a correct answer, but there are other vectors that also transmit zoonotic diseases.
* **Option C:** Sand flies are a correct answer, but again, multiple vectors can transmit zoonotic diseases.
* **Option D:** Mosquitoes are a correct answer, but the question asks for multiple vectors.
**Clinical Pearl / High-Yield Fact**
When considering zoonotic diseases, it's essential to remember that multiple vectors can transmit the same disease. Understanding the various vectors involved can help in identifying the source of an outbreak and developing effective prevention and control measures.
**Correct Answer:** A, B, C, D. All of the above vectors can transmit zoonotic diseases.