Fetal Tissue and Vaccines. 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.
snippet from: http://www.cdc.gov/nip/vacsafe/concerns/gen/contamination.htm#Fetal
http://www.cdc.gov/nip/vacsafe/concerns/gen/humancell.htm
"CDC is aware that some, but not all, vaccines are made from human
cell-line cultures, and some of these cell lines originated from aborted
fetal tissue, obtained from legal abortions in the 1960's. No new fetal
tissue is needed to produce cell lines to make these vaccines, now or in
the future. Fetal tissue is not used to produce vaccines; cell lines
generated from a single fetal tissue source are used--vaccine manufacturers
obtain human cell lines from FDA-certified cell banks."