| |
| | Vaccine - Medical Encyclopedia |
 | | A vaccine (named after vaccinia, the infectious agent of cowpox, which, when innoculated, provides protection against smallpox) is used to prepare a human or animal's immune system to defend the body against a specific pathogen, usually a bacterium, a virus or a toxin. |
 | | The main risk of rubella, for example, is to the fetuses of pregnant women, but this risk can be effectively reduced by the immunization of children to prvent transmission to pregnant women. |
 | | For those who remain concerned despite the lack of evidence, thimerosal-free formulations of DTP (diphtheria, tetanus, and pertussis) vaccine, pneumococcal conjugate vaccine, polio vaccine, MMR (measles, mumps, and rubella), hepatitis B, Haemophilus influenzae type b (HIB) vaccines and Hib/Hepatitis B combination vaccines are available. |
| www.nursingstudy.com /encyclopedia/Vaccine.html (771 words) |
|