Climate-Driven Shifts in Vector-Borne Disease Ecology Across South Asia

Year : 2025 | Volume : 02 | Issue : 02 | Page : 1 5
    By

    Atul Khajuria,

  • Stephen Monday,

  • Eric Kwasi Elliason,

  • Gagan,

  • J. Samuel Kamanda,

  1. Director, Faculty of Allied Health Sciences, Desh Bhagat University, punjab, India
  2. Teaching Assistant, Faculty of Allied Health Sciences, Desh Bhagat University, Punjab, india
  3. Teaching Assistant, Faculty of Allied Health Sciences, Desh Bhagat University, Punjab, india
  4. Assistant Professor, Faculty of Allied Health Sciences, Desh Bhagat University, Punjab, india
  5. Assistant Professor, Faculty of Allied Health Sciences, Desh Bhagat University, Punjab, India

Abstract

Climate change remains one of the most important phenomena affecting the geographical distribution
and movement patterns of vector-borne diseases. In South Asia – characterized by high population
density, rich biodiversity, and sharp climatic differences – there is growing evidence of the relationship
between increasing temperatures and erratic precipitation, along with the behavior of insect vectors.
This research aims to evaluate the effects of climate environmental changes on the distribution and
seasonal activity of important vector insects like Aedes aegypti, Anopheles stephensi, Phlebotomus
argentipes, and tick species. A systematic review of epidemiological literature along with climate data
and vector monitoring data from 2010–2024 were analyzed using spatial analysis through
geoinformatics. There is striking contemporaneous evidence of both longitudinal and vertical shifts in
the habitats of some vectors, and now many more disease-carrying species are being reported from
regions which were earlier considered non-endemic, like the Himalayan foothills and the semiarid
plains. Much of these newly affected documented areas are gradually facing increased cases of dengue,
malaria, and leishmaniasis. Most of the pathogen incubation periods in the vectors has reduced due to
the rise in temperatures, while the prolonged precipitation and humidity levels have aided in higher
breeding and better survival of the vectors. The study emphasizes the importance of focused climate
change public health strategies, responsive multisectoral vector monitoring, and geo-specific
anticipatory frameworks, including preemptive climate-adaptable measures aimed at the vulnerable
population groups. It draws attention toward the need for transnational collaboration, enhanced
infrastructure, and public health information systems to address the rising danger associated with
climate-sensitive vector-borne diseases in South Asia. These observations will help guide policymakers,
public health experts, and researchers formulate effective plans for long-term preventive measures

Keywords: Climate change, disease transmission, environmental health, insect vectors, mosquitoes, South Asia, vector-borne diseases

[This article belongs to International Journal of Insects ]

How to cite this article:
Atul Khajuria, Stephen Monday, Eric Kwasi Elliason, Gagan, J. Samuel Kamanda. Climate-Driven Shifts in Vector-Borne Disease Ecology Across South Asia. International Journal of Insects. 2025; 02(02):1-5.
How to cite this URL:
Atul Khajuria, Stephen Monday, Eric Kwasi Elliason, Gagan, J. Samuel Kamanda. Climate-Driven Shifts in Vector-Borne Disease Ecology Across South Asia. International Journal of Insects. 2025; 02(02):1-5. Available from: https://journals.stmjournals.com/iji/article=2025/view=235234


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Regular Issue Subscription Review Article
Volume 02
Issue 02
Received 14/04/2025
Accepted 30/08/2025
Published 30/12/2025
Publication Time 260 Days
29

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