
A vaccine is a biological medical product designed to stimulate antibodies inside human body. Vaccine helps in providing immunity against various infectious diseases. Some of the common types of vaccine include inactivated vaccines, subunit vaccines, DNA vaccines and recombinant vector vaccines. Vaccines may be prophylactic and therapeutic. Therapeutic vaccine is a biological combination designed to develop immunity against a diseased cell or tissues. Therapeutic vaccines are developed to treat ailments from various cancers, HIV and Alzheimer's disease. Therapeutic vaccine is used for cure and prevention of cancer whereas prophylactic vaccines are only used for prevention of cancer. Therapeutic vaccines are specially designed for HIV positive people who have healthy immune system. HIV virus damages human immune system, which results into weaker immune system and thus leading to less ability to fight with microorganisms. Therapeutic vaccines spur the immune system to attack targeted tissue. A therapeutic HIV vaccine is also known as treatment vaccines. Some of the drugs used for HIV treatment include atripla, epzicom, prezista, truvada, kaletra, isentress, reyataz and viread. In addition, there are large numbers of therapeutic vaccines which are under clinical developments. Therapeutic vaccines are also used to treat cancer as they provide greater bioavailability and specificity with minimal side effects. Some of the side effects associated with therapeutic vaccines are swelling, redness, soreness and pain at the site of injection. In addition, mild-flu like symptom is another side effect for therapeutic vaccines.