S.NAGENDRA / SCIENCE PHOTO LIBRARY S.NAGENDRA / SCIENCE PHOTO LIBRARY
Vaccination. Mother holding her child as the child receives a vaccination injection. The vaccination provides long-term protection from an infectious disease. The injection contains killed or weakened disease-causing micro-organisms, prompting an immune response that prepares the body for future infections by that micro-organism. Photographed in India as part of a global program of immunization of children.
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