Role of vaccines.
Pneumitiscal and Influenza vaccinations have played a positive role in preventing streptococcal and influenza infection, changing the outlook of lower respiratory tract infection.
Abstract
Introduction S the time of discovery of smallpox vaccination in 1796 by Edward Jenner, vaccinations have a major impact on global health. Immunization is a process of inducing immunity against a specific disease and it can be induced actively by administration of vaccine or toxoid to produce humoral or cellmediated immune response. Vaccines may contain live attenuated organisms, inactivated or killed organisms, toxoids or subunits of antigen. It may be derived from cell culture techniques. Pneumococcal and Influenza vaccinations have played a positive role in preventing streptococcal and influenza infection, changing the outlook of lower respiratory tract infection.