What is a Vaccine?
A preparation of a weakened or killed pathogen, such as a bacterium or virus, or of a portion of the pathogen's structure, that stimulates immune cells to recognize and attack it, especially through antibody production. Most vaccines are given orally or by intramuscular or subcutaneous injection. (Farlex, 2013) By the time a child turns 6 years old, they will have already received around 36 vaccinations towards various diseases. Schedule can be viewed here:
childhood vaccination schedule. |