Question

Which of the following is not correctly matched?
A. Glossina palpalis - Sleeping sickness
B. Cules - Filariasis
C. Aedes aegypti - Yellow fever
D. Anopheles culicifacies - Leishmaniasis

Answer 1

Hint: The leishmaniasis is caused by the infection with Leishmania parasites, which are spread by the bite of the infected sand flies.

Complete step by step answer: The incorrectly matched pair is ‘Anopheles culicifacies - Leishmaniasis’ because leishmaniasis or kala-azar is caused by Leishmania donovani. It spreads through the sand fly. It is also known as dum-dum fever. The epidemiology of leishmaniasis depends on the characteristics of the parasite and sandfly species, the local ecological characteristics of the transmission sites, current and past exposure of the human population to the parasite, and human behaviour. Anopheles culicifacies are one of the major vectors of malaria on the Indian subcontinent. It has been reported to be the species complex consisting of five sibling species which have been provisionally designated as species A, B, C, D, and E. It prefers to rest indoors in cattle sheds, where it feeds on the cattle.
Hence, the correct answer is option D.

Additional information:
i. Gambian sleeping sickness is caused by Trypanosoma brucei gambiense. The disease is transmitted by a tsetse fly, Glossina palpalis.
ii. The Rhodesian sleeping sickness is caused by T. brucei rhodesiense. It is transmitted to man by bites of the tsetse fly Glossina morsitans.
iii. Aedes aegypti is a yellow fever mosquito. It spreads dengue fever, chikungunya, Zika fever, Mayaro and yellow fever viruses, and the other disease agents.

Note: The sleeping sickness is curable with the medication but it is fatal if left untreated.
The lymphatic filariasis can be cured by stopping the spread of the infection through preventive chemotherapy. The yellow fever infection is diagnosed based on laboratory testing, a person's symptoms, and travel history. There are no such medicines to treat or cure this infection.