Dr. Addepalli Prem Kumar
Research Profile
Dr. Addepalli Prem Kumar is a public health entomologist and scientist whose research focuses on vector biology, transmission dynamics, and the operational control and elimination of vector-borne diseases, with particular emphasis on malaria, lymphatic filariasis, and arboviral infections such as dengue. His research integrates field vector ecology, molecular xenomonitoring, phytotelmata breeding bionomics, and community-level public health interventions across the ecologically fragile and geographically remote archipelago of the Andaman and Nicobar Islands to identify critical entomological gaps, guide vector management strategies, and advance regional disease elimination goals.
Scientific Contributions
Elimination of Diurnally Subperiodic Lymphatic Filariasis
Investigated transmission dynamics in the Nancowry group, the world's lone focus of diurnally subperiodic Wuchereria bancrofti transmitted by the sylvatic day-biting Aedes niveus. He implemented targeted elimination strategies, including assessing multi-round Mass Drug Administration (MDA) and demonstrating the efficacy of mass DEC-fortified salt as a supplementary intervention to hasten parasite elimination in native Nicobarese populations.
Molecular Xenomonitoring in Vector Populations
Advanced molecular xenomonitoring methodologies to overcome limitations of night-blood surveys and track residual transmission in sylvatic vector complexes. Utilizing specific PCR assays to screen Aedes niveus pools for W. bancrofti DNA following MDA rounds, his work established a non-invasive, robust surveillance tool to assess infection thresholds and confirm interruption of transmission.
Mosquito Bio-ecology in Phytotelmata
Characterized the biodiversity and spatial distribution of mosquito immatures across natural phytotelmata (tree hollows, cut bamboo, coconut shells) in domestic, peri-domestic, and sylvatic zones of Car Nicobar and Teressa Island. His research documented shifts in aedine diversity and spatial colonization resulting from post-tsunami geo-ecological modifications, generating vital intelligence for ecologically sound larval control.
Stegomyia Surveillance & International Health
Evaluated the prevalence, seasonal indices, and breeding ecology of Stegomyia mosquitoes (Aedes aegypti and Aedes albopictus) at the airport and seaports of Sri Vijaya Puram. This work provides critical data for preventing the ingress and dissemination of dengue, chikungunya, and Zika vectors into the island archipelago.
Current Focus & Significance
Current research focuses on achieving and sustaining the elimination of Malaria and Lymphatic Filariasis from the Andaman and Nicobar Islands through targeted public health initiatives, high-resolution vector surveillance, and molecular entomology. A key priority involves validating molecular xenomonitoring tools to substantiate parasite clearance in isolated tribal hamlets, strengthening vector management protocols for dengue, and addressing entomological gaps at maritime ports and transportation hubs. The ongoing elimination strategy also investigates asymptomatic carriers of malaria, hidden vectors, and the presence of human malaria parasites like P. knowlesi.
Because the Andaman and Nicobar Islands present unique geographic isolation and vulnerable island ecosystems, standardized mainland vector control methodologies often require tailored operational adaptation. Dr. Prem Kumar's findings on vector bionomics, supplementary DEC-salt interventions, and molecular xenomonitoring directly support national programs (NCVBDC) and WHO global roadmaps for neglected tropical disease elimination, providing health authorities with empirical metrics to prevent vector-borne disease re-emergence.