Summary North-east India is a nonendemic region for dengue. In Aizawl, Mizoram, the first and last Dengue outbreak reported was in 2016 with 58 confirmed cases and no deaths. However, in 2022, the dengue outbreak reported 1868 confirmed cases, with five deaths in Aizawl. We conducted an outbreak investigation in Bethlehem Vengthlang and Chite Veng through a house-to-house survey to confirm the transmission of dengue virus infection. The overall attack rate was 11.4% with no gender difference. Currently, Mizoram has only two sentinel sites. Study findings will be useful for the selection of sites related to the upcoming phase 3 dengue vaccine trials.
Zonunmawii et al. (2026) studied this question.