Extended Data Fig. 1: Map of India showing the phased introduction by states of RotavacTM vaccine in the Universal Immunization Program in India from 2016 to 2018.
This map was generated using licensed version of ArcGIS® software to demonstrate the states in India that were part of the surveillance and introduction times of rotavirus vaccine in each of the participating states. Vaccine effectiveness surveillance data were collected from all nine states from January 2016 to January 2020. Data for assessing the impact of the vaccine were obtained from four states with pre-vaccination data from September 2012 to April 2016, post-vaccination data from May 2016 to June 2020, and from Tamil Nadu from 2018 to January 2020. A uniform protocol was followed throughout the surveillance period.
