Entomological Surveillance of Dengue Vector Aedes Mosquito Larvae in City Sadar Paharganj (SP) Zone of MCD, Delhi

Abstract

Introduction: Dengue fever is an arboviral disease and its vectors are Aedes aegypti and Aedes albopictus. It is considered to be the leading cause of arboviral diseases across the world. The patterns of different urbanizations, with the growth of human population density, lead to favourable conditions for the breeding of Aedes species. It leads to the emergence and spreading of diseases like dengue, chikungunya, yellow fever, etc. As there is no vaccine or licensed drug available for the treatment of dengue, it is a major public health concern. One of the possible ways by which dengue transmission can be prevented is control at the level of vector and this can be achieved by entomological surveillance. Method: In the present study, the entomological surveillance of Ae. aegypti in the City Sadar Paharganj (SP) Zone of the Municipal Corporation of Delhi from July 2023 to June 2024 was done. Results: In the study, all larval indices (HI, CI and BI) were high from the month of July to August. The maximum larval breeding was found in plastic containers (39.26%) followed by earthen pots (20.09%) and coolers (17.80%). Conclusion: As container positivity was high in plastic containers, earthen pots and coolers, therefore these can be used as vector control tools so that transmission of vector-borne diseases can be checked and timely preventive measure can be taken to suppress the seasonal infection.