Tamil Nadu Health Department has expanded the Japanese Encephalitis (JE) vaccination programme to 7 more districts.
A total of 27,63,152 children aged 1 to 15 years will be covered with a single dose of the JE vaccine.
The campaign will be conducted in government and government-aided schools, anganwadi centres, orphanages and juvenile homes.
JE is a mosquito-borne zoonotic viral disease that affects the central nervous system and can lead to severe complications or death.
JE vaccination has been implemented since 2007 in 15 endemic revenue districts.
The programme is now being expanded to cover seven additional districts: Chennai (excluding the two already covered zones), Chengalpattu, Tirunelveli, Tenkasi, Kancheepuram, Nagapattinam, and Vellore.