Human Vaccines
Vaccines are substances that are administered to humans to protect them from disease. Vaccines work by prompting the body’s own immune system to produce antibodies to specific strains of disease, so that those same strains cannot infect the person later on. Vaccines can prevent infectious diseases that can cause serious, sometimes life-threatening illnesses. Immunization with vaccines is one of the most cost-effective public health interventions available, and is a major contributor to reducing the global burden of disease. Vaccines are also important for preventing the spread of infectious diseases in communities, as they protect both vaccinated individuals and their unvaccinated contacts. Vaccines have saved millions of lives worldwide and continue to be a cornerstone of modern public health.
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