Vaccines are made using stocks of frozen virus/bacterium which are grown in cell cultures. One contentious issue often raised by opponents of vaccines is the use of human foetal tissue. Human foetuses have been used in the making of these vaccines:
* Poliomyelitis - not all manufacturers use human cells
* Hepatitis A
Human Cell Lines
No new foetuses have been used in the manufacture of vaccines since the establishment of the initial cell line.
Human cell lines are generally used because some viruses only infect humans. The medical argument is that as the cell line has been around for over 20 years and no longer resembles the original cells there is no ethical concern. Some churches agree with this sentiment but to some people who are totally opposed to abortion the issue is not so clear cut. There are vaccines available which do not use human tissue, instead they use monkey kidney, chick embryo, or rabbit kidney to passage the virus.
[snip]However the use of animals in vaccine manufacture has ethical consequences for vegans/vegetarians and other animal rights believers.
There are many vaccines on the market, and many manufacturers. To know for certain if a particular vaccine has been made using cell lines derived from human foetal tissue will require you to view the product insert. If the term 'human diploid tissue' is used then you can assume the tissue was of foetal origin. Other terms include WI 38, MRC-5 and WI RA 27/3. Animal content is often mentioned explicitly although a term to look for is Vero. Foetal bovine serum is also used in the manufacture of many vaccines and this may not be listed.
Kathy "damned if you do, dead if you don't" B.
The plural of "anecdote" is not "data."