Live, Attenuated, Inactivated, DNA vaccines

Vaccine is a biological preparation that provides Active acquired immunity to a specific disease. Vaccination is the most effective method of preventing infectious diseases. There are different types of vaccines which contain Inactivated micro-organisms (polio vaccine), attenuated micro-organisms (BCG vaccine), Inactivated Toxic compounds. Vaccines can interfere when two or more vaccines mixed together. Varicella vaccine is rarely associated with complications in Immuno deficient individuals.