![]() The second, named MRC-5, was developed in 1966 from the lung tissue of a fetus aborted at 3.5 months gestational age. The first, named WI-38, was developed in 1962 from the lung tissue of a fetus aborted at 3 months gestational age. There are two cell lines currently used to develop vaccines. So, we prefer to use human cells to culture viruses, but where are we sourcing these cells from? Animal products like chicken eggs can be used, but then there is a risk that an egg shortage could cause a vaccine shortage. Animals are costly to keep alive, may be infected with viruses that could contaminate vaccines, and don’t grow all viruses well. Those cells don’t have to be human but using animal cells for vaccine development causes some problems. Vaccines require viruses, and viruses have to be cultured in cells, as they cannot reproduce on their own. ![]() But it’s not as simple as vaccines containing crushed-up aborted fetuses.Īs David Gorski explains for Science-Based Medicine, “fear mongering about 'fetal parts' in vaccines is, not surprisingly, a distortion of the real situation, which is that the human cell lines are used to make some vaccines.” ![]() This is not to say that fetal material, specifically fetal cells, do not play a role in the manufacturing of some products.
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