The advancements made in biological science have armed us to effectively deal with many infectious diseases.

The use of vaccines and immunization programs have enabled us to completely eradicate a deadly disease like smallpox.

A large number of other infectious disease like polio, diphtheria, pneumonia and tetanus have been controlled to a large extent by the use of vaccines.

Biotechnology is at the verge of making available newer and safer vaccines.

Discovery of antibiotics and various other drugs has also enabled us to effectively treat infectious diseases.