The human diploid cell strains from aborted babies were from 2 aborted fetus, from around the 1960's from Sweden (or Norway or someplace along those lines) It's been awhile since I've done that research. Those are the only two that were used, no more cells from aborted fetuses have ever been used since, apparently.
All that said, I still vaccinate my children b/c a life with many of these diseases can be devastating or fatal. And so many people are opting out, that herd immunity isn't nearly as effective as it once was.
The CDC Center for Disease control came out with a public statement that parents using the vaccine which originated with the aborted fetal cells are in no way supporting abortion. The issue is, whether they continue to use new aborted fetal cells or not and that is unclear. Apparently a few years ago, they patented new technology for using fetal cells, since the lifespan of the original cells eventually die off;
http://www.cdc.gov/vaccines/vac-gen/laws/rubella-cathnews...
"Some vaccines such as rubella and varicella are made from human cell-line cultures, and some of these cell lines originated from aborted fetal tissue, obtained from legal abortions in the 1960s. No new fetal tissue is needed to produce cell lines to make these vaccines, now or in the future."
one source/reason;
From an article in American Journal Diseases of Children (referenced here):
Explant cultures were made of the dissected organs of a particular fetus aborted because of rubella, the 27th in our series of fetuses aborted. This fetus was from a 25-year-old mother exposed to rubella 8 days after her last menstrual period. 16 days later she developed rubella. The fetus was surgically aborted 17 days after maternal illness and dissected immediately. Explants from several organs were cultured and successful cell growth was achieved from lung, skin, and kidney. It was then grown on WI-38. The new vaccine was tested on orphans in Philadelphia. [emphasis added]
http://www.cogforlife.org/fetalvaccinetruth.htm#The_Need_...
some ingredients are found here: http://www.thepowerhour.com/news/child_vaccine.htm