Homogenization of Vaccines

Since the late nineteenth century, public health officials have recommended and enforced vaccines for a small number of highly infectious and communicable diseases. Vaccines work with the immune system's ability to recognize and destroy foreign proteins (antigens) that it determines are “nonself.” Today, however, there are more than 200 new vaccines in the research pipeline, including one for HIV.

Vaccine manufacturers, health-care providers, and public health officials are correct to point out that since the introduction of the measles vaccine, the rate of disease has declined. The major part of the vaccines are prepared for injection or intraveneous administration.