A national study conducted by the Indian Council of Medical Research's National Institute of Virology has identified all four dengue serotypes circulating simultaneously in eight states and union territories in India. The research analyzed over 6,889 lab-confirmed dengue cases collected between 2023 and 2025, revealing that multiple serotypes are co-circulating, which could impact the effectiveness of future vaccines. DENV-2 was the most prevalent strain, responsible for 51% of infections, while other regions showed varying dominance of specific serotypes. The study emphasizes the need for ongoing surveillance to inform vaccine strategies and public health responses, as concurrent infections are linked to more severe symptoms.
Bias read (Center): The article presents a scientific study without overt ideological framing. While the implications of the findings relate to public health policy, the tone remains objective, focusing on data and expert recommendations rather than taking a partisan stance. The emphasis is on the importance of ongoing



