National Immunization Schedule for India

The schedule is implemented by the Ministry of Health and Family Welfare, Government of India, and is designed to provide immunity against a range of diseases, including tuberculosis, polio, diphtheria, pertussis, tetanus, measles, and Japanese encephalitis. The schedule outlines the recommended vaccinations for infants and children, as well as adults. For infants, the schedule includes vaccinations against tuberculosis (BCG), hepatitis B, diphtheria, pertussis, tetanus (DPT), polio (OPV), and measles. The first dose of BCG is administered at birth, while the first dose of DPT and OPV is given at 6 weeks of age. Subsequent doses of DPT and OPV are administered at 10 weeks, 14 weeks, and 16-24 months of age. The schedule also includes vaccinations against measles, which is administered at 9-12 months of age, and Japanese encephalitis, which is administered at 16-24 months of age. For adults, the schedule includes vaccinations against tetanus (TT) and hepatitis B, which are administered at 10 and 16 years of age, respectively. In addition to the recommended vaccinations, the schedule also outlines the site and route of vaccination for each vaccine. For example, the BCG vaccine is administered intradermally on the left upper arm, while the DPT vaccine is administered intramuscularly on the antero-lateral aspect of the mid-thigh. The schedule also emphasizes the importance of maintaining a cold chain to ensure the potency and effectiveness of the vaccines. This includes storing vaccines at a temperature of +2 to +8°C, monitoring storage temperature twice a day, and discarding frozen vaccines. The use of vaccine carriers is also an essential part of the immunization program. Vaccine carriers are used to transport vaccines from the primary health center (PHC) to the immunization session, and to store vaccines during the session. The carrier is designed to maintain a temperature of +2 to +8°C for up to 12 hours, and is equipped with frozen ice packs to keep the vaccines cool. In terms of vaccine sensitivity, the schedule notes that BCG, OPV, and measles vaccines are sensitive to heat, while hepatitis B, DPT, and TT vaccines are sensitive to cold. The schedule also emphasizes the importance of following the Early Expiry First Out (EEFO) principle, which involves discarding vaccines that are approaching their expiration date before using newer vaccines. Overall, the National Immunization Schedule in India is a comprehensive program aimed at protecting children and adults from vaccine-preventable diseases. The schedule outlines the recommended vaccinations, site and route of vaccination, and emphasizes the importance of maintaining a cold chain and using vaccine carriers to ensure the potency and effectiveness of the vaccines.