Epidemiological Trends of Dengue in Nainital District: Effect of Source Reduction Interventions (2023–2024)

Vinay  Singh; Harish  Pant; J P  Kashyap; Satpal Singh  Bisht; Neha Rajwar; D S  Karthik

Vinay Singh District Vector Borne Disease Consultant, , Office of Chief Medical Officer Nainital, Uttarakhand, India
Harish Pant Chief Medical Officer, Office of Chief Medical Officer Nainital, Uttarakhand, India
J P Kashyap District Malaria Officer, Office of Chief Medical Officer Nainital, Uttarakhand, India
Satpal Singh Bisht Vice Chancellor, SSJ University Almora, Uttarakhand, India
Neha Rajwar Senior Inspire Fellow, Kumaun University Nainital, Uttarakhand, India
D S Karthik Faculty of Management Studies, Dr. MGR Educational and Research Institute, Chennai, India

Keywords: Dengue, Aedes, Entomological Indices, Source Reduction, Community Participation

Abstract

The present study deals with comparative epidemiological and entomological trends over the past two years (2023&2024) in Nainital district of Uttarakhand. In 2023, a total of 830 dengue cases were recorded, whereas in 2024 a of total 60 cases were recorded. In terms of the monthly variation in 2023, the dengue cases were started from the month of June (1), and the highest number of cases were recorded in the month of September (320), and the last case was recorded in the month of December (1), whereas in 2024 the dengue cases started in the month of September (10), followed by October (31) and November (19). The comparison reveals that the number of dengue cases was highly significant change (P > 0.05) over two years (2023 & 2024). In terms of age-and gender-specific distribution of dengue cases, the incidence rate in males was higher and the predominant age group was 21-30 years. The entomological survey was conducted from May to December in each year. The monthly variation of all the entomological indices, i.e. House Index (HI), Container Index (CI) and Breteau Index
(BI), was higher in 2023 as compared to 2024 due to enhanced source reduction efforts and increased community participation.

How to cite this article:
Singh V, Pant H, Kashyap J P, Bisht S S, Rajwar N,
Karthik D S. Epidemiological Trends of Dengue
in Nainital District: Effect of Source Reduction
Interventions (2023–2024). J Commun Dis.
2025;57(2):57-61.

DOI: https://doi.org/10.24321/0019.5138.202537

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