Vaccines are routinely formulated with aborted human fetal cells known as MRC-5 and WI-38. The CDC openly lists some of the vaccines that use these “human diploid” cells, including Twinrix (Hep A / Hep B), ProQuad (MMRV) and Varivax (Varicella / chicken pox). FDA-published vaccine insert sheets such as this one for Varivax also openly admit to the use of aborted human fetal cell lines such as MRC-5: