Immunization

This document provides information about immunization and vaccination. It discusses how immunization works to protect the body from infectious diseases through vaccination or exposure to antigens. The document also includes Nigeria's national immunization schedule, which recommends vaccines for diseases like polio, diphtheria, pertussis, and measles at various ages from birth through adolescence. It notes that minor side effects like fever or rashes are normal after some vaccinations. Only high fever or other severe reactions require medical attention.