1. World Health Organization (2024, April 08). Vaccine Preventable Diseases Surveillance Standards. Available online: https://www.who.int/teams/immunization-vaccines-and-biologicals/immunization-analysis-and-insights/surveillance/surveillance-for-vpds/vpd-surveillance-standards.
2. Ministry of Health and Family Welfare, and Government of India (2023). A Big Leap Towards Measles & Rubella Elimination. Intensified Mission Indradhanush 5.0, Operational Guidelines, Government of India.
3. Ministry of Health and Family Welfare, and Government of India (2024, April 08). National Immunization Schedule, Available online: https://nhm.gov.in/New_Updates_2018/NHM_Components/Immunization/report/National_%20Immunization_Schedule.pdf.
4. Child Health Division, and Department of Family Welfare Ministry of Health & Family Welfare New Delhi (2005). Field Guide. Surveillance of Acute Flaccid Paralysis, Ministry of Health & Family Welfare. [3rd ed.].
5. Ministry of Health and Family Welfare, and Government of India (2020). Measles and Rubella Surveillance Field Guide 2020, Government of India.