HIV/AIDS

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Vaccine

Developing a vaccine involves using a disease-causing agent (e.g., virus, bacterium) to stimulate the immune system to launch a protective response. Once the immune system recognizes the virus or bacterium and develops antibodies to it, vaccination (injecting a person with a vaccine) establishes immunity to the infectious disease. A vaccine that protects people from infection is called a preventative vaccine and a vaccine that prevents disease in infected people is called a therapeuti...Read the full article