What is Vaccine?
Vaccine meaning Synonym(s): InoculationA substance administered to trigger an immune response against a particular disease. Most vaccines are designed to prevent a person from ever having a particular disease or to only have a mild case of the disease. However, therapeutic vaccines are intended to treat specific diseases. Although researchers are testing vaccines both to prevent and treat HIV/AIDS, no HIV vaccine is currently approved for use outside of clinical trials. Related Term(s): Preventive HIV Vaccine, Therapeutic HIV Vaccine
reference: AIDSinfo – GlossaryWhat is