Spatio-temporal distribution of dengue cases and vectors along with the interrelationship of environmental and climatic factors in the metropolitan city, Kolkata, India, for 2017-2022: calling implications for vector control.

ABSTRACT: We studied the spatio-temporal distribution of dengue at the micro-scale, along with other important factors for disease transmission, like vector prevalence, seasonality, breeding behaviour, entomological indices, and its relation with environmental and climatic factors in Kolkata, one of the most populous metropolitan cities in India, facing dengue upsurge in recent years. We analysed dengue data from 144 wards, city-level meteorological data for 6 years (2017-2022), Land Use Land Cover (LULC) data for 2022, and entomological surveillance data from 7 wards in 2022. Dengue showed high spatial heterogeneity and clustering at the micro-level, with a yearly post-monsoon peak (August-November) accounting for ∼90% of cases and representing a 2-3 month lag between high rainfall, temperature, an

SUBMITTER: Rani Jena S 

PROVIDER: S-EPMC12042241 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature