Which of the following pairs of vector and disease is/are correctly matched ? Vector : Disease 1. Anopheles : Malaria 2. Aedes aegypti : Chikungunya 3. Tsetse fly : . Filariasis 4. Bed bugs : Sleeping sickness Select the correct answer using the code given below:

The matching of vectors and diseases reveals that pairs 1 and 2 are correct. Anopheles mosquitoes are the primary vectors for Malaria [5]. Aedes aegypti is the well-documented vector for Chikungunya, as well as Dengue and Zika [5]. However, pairs 3 and 4 are incorrectly matched. Tsetse flies (Glossina) are the vectors for Sleeping Sickness (Human African Trypanosomiasis), not Filariasis [3]. Filariasis (specifically Lymphatic Filariasis) is transmitted by various mosquito genera, including Culex, Anopheles, and Mansonia [5]. Bed bugs are generally not considered primary vectors for major human diseases like Sleeping Sickness; rather, Sleeping Sickness is exclusively transmitted by the Tsetse fly [3]. Therefore, only the first two pairs are correctly matched, making option 2 the correct choice.

Sources

1. [3] https://extranet.who.int/kobe_centre/sites/default/files/pdf/vbdfactsheet.pdf
2. [5] https://en.wikipedia.org/wiki/Disease_vector
3. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 8: Natural Hazards and Disaster Management > Dengue and Chikungunya > p. 80