1. FAQ for Health Workers: PCV: Immunization Division, Ministry of Health and Family Welfare, Government of India. January 2021.
2. Levels and trends in child mortality. Estimates developed by the UN Inter-Agency Group for Child Mortality Estimation. Child Mortality Report; 2019.
3. FAQ for Medical Officers: PCV: Immunization Division, Ministry of Health and Family Welfare, Government of India. January 2021.
4. National Operational Guidelines: Introduction of PCV: Immunization Division, Ministry of Health and Family Welfare, Government of India. January 2021.
5. World Health Organization. Pneumococcal conjugate vaccines in infants and Children under 5 years of age: WHO Position Paper – February 2019.