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Are aborted fetal cells used to make the MMR vaccine? [1]

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Date: 2025-08-07 15:50:40+00:00

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No.

Aborted fetal cells are not used to manufacture the measles, mumps and rubella (MMR) vaccine today, though the original rubella vaccine was made using human fetal embryo fibroblast cells obtained from two elective abortions in the 1960s.

The rubella vaccine is one of many vaccines that use the cell lines from those aborted fetuses, meaning they descend from the original fetal cells, but are not taken directly from new fetal tissue. These cells were chosen because the womb’s sterile environment does not contain the viruses often found in animal cells.

During the manufacturing of the MMR vaccine, the vaccine virus is purified and cellular debris and growth reagents are removed, breaking down trace DNA until there is none or almost none left.

Most of the major world religions that oppose abortion, including the Roman Catholic Church, have deemed vaccines permissible to prioritize the health of pregnant women, children and the wider population.

This fact brief is responsive to conversations such as this one.

Sources

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[1] Url: https://wisconsinwatch.org/2025/08/abortion-aborted-fetal-cells-mmr-vaccine-measles-mumps-rubella/

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