Question:
Sandfly transmits all of the following diseases, EXCEPT:
Sandfly transmits all of the following diseases, EXCEPT:
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Sandfly spreads all leishmaniases and sandfly fever; relapsing fever is louse or tick borne.
Updated On: Jun 24, 2026
- Oriental sore
- Leishmaniasis
- Kala-azar
- Relapsing fever
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: The sandfly (Phlebotomus and related species) is the vector for the leishmaniases. Kala-azar (visceral leishmaniasis) is spread by Phlebotomus argentipes, while oriental sore (cutaneous leishmaniasis) is spread by Phlebotomus papatasi and Phlebotomus sergenti.
Step 2: The sandfly also transmits sandfly fever (a viral illness) and bartonellosis. So oriental sore, leishmaniasis and kala-azar are all sandfly-borne.
Step 3: Relapsing fever is NOT transmitted by sandfly. Louse-borne relapsing fever is spread by the body louse and tick-borne relapsing fever by soft ticks of the genus Ornithodoros, both caused by Borrelia species.
Step 4: Since the question asks for the exception, relapsing fever is the correct answer.
Step 2: The sandfly also transmits sandfly fever (a viral illness) and bartonellosis. So oriental sore, leishmaniasis and kala-azar are all sandfly-borne.
Step 3: Relapsing fever is NOT transmitted by sandfly. Louse-borne relapsing fever is spread by the body louse and tick-borne relapsing fever by soft ticks of the genus Ornithodoros, both caused by Borrelia species.
Step 4: Since the question asks for the exception, relapsing fever is the correct answer.
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