All are transmitted by Soft Tick, except –
**Core Concept**
The question is testing the student's knowledge of vectors involved in the transmission of various diseases. Soft ticks are vectors for several pathogens, including certain bacterial and viral agents. This question requires the student to identify which of the listed diseases is not transmitted by soft ticks.
**Why the Correct Answer is Right**
Soft ticks are vectors for diseases such as Crimean Congo Hemorrhagic Fever (CCHF), Boutonneuse fever (also known as Mediterranean spotted fever), and others. However, the correct answer is a disease that is not transmitted by soft ticks. This requires the student to have knowledge of the vectors involved in the transmission of various diseases.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is a disease that is transmitted by soft ticks. The correct disease is another one that is transmitted by a different vector.
**Option B:** This option is incorrect because it is a disease that is transmitted by soft ticks.
**Option C:** This option is incorrect because it is a disease that is transmitted by soft ticks.
**Clinical Pearl / High-Yield Fact**
Soft ticks are vectors for several diseases, including Crimean Congo Hemorrhagic Fever (CCHF) and Boutonneuse fever (Mediterranean spotted fever). These diseases are typically transmitted through tick bites and can be severe.
**Correct Answer: A. Theileriosis**