Vaccines

Vaccines are medications that as part of preventative healthcare provide immunity against certain diseases. They contain antigens, which are either weakened or killed forms of the disease-causing organisms. When a vaccine is introduced into the body, the immune system recognizes the antigens and starts to produce antibodies to fight the disease. Vaccines are effective in not only preventing the occurrence of a disease but also reducing its severity if contracted. Vaccines have saved millions of lives and are considered to be one of the greatest triumphs in modern medicine. They are routinely administered in many parts of the world and are recommended for people of all ages for the prevention of serious, life-threatening illnesses.