India's First Dengue Vaccine Arrives with a Crucial Safety Caveat

India's drug regulator has approved Qdenga, the country's first dengue vaccine, for individuals aged 4 to 60 years, regardless of prior infection history. Manufactured by Japanese pharmaceutical company Takeda, the vaccine targets all four dengue serotypes (DENV-1 to DENV-4). The approval comes as India faces rising dengue cases, marking a significant public health milestone.

Side effects: The vaccine carries a specific concern—it could potentially **enhance dengue...