Justice Clarence Thomas made a false claim on Thursday about the use of cell lines from "aborted children".

The vaccine mandate for healthcare workers in New York was upheld by the Supreme Court in a 6-3 vote.

In his dissent, Thomas wrote that a group of healthcare workers objected to the use of cell lines from aborted children in the development of the vaccine.

Fetal cell lines were important for testing the efficacy of COVID-19 vaccines, but the fact is often misconstrued into claims that aborted fetal cells were used to create the vaccine or that the vaccine itself contains aborted fetal cells.

According to a handout guide from the North Dakota Department of Health, the fetal cell lines were grown in a lab by taking cells from two abortions. The cells came from two different cell lines, one from a fetus and the other from an aborted fetus.

The abortion wasn't done for vaccine development, but for voluntary reasons.

Ibuprofen, aspirin, and cold medication are some of the more common forms of treatment that have been helped by these cell lines.

According to the handout by the North Dakota Department of Health, any vaccine that uses historic cell lines won't require or encourage new abortions. Fetal cell lines can be used to develop or manufacture vaccines, but they don't contain aborted fetal cells.

The Charlotte Lozier Institute, a pro-life policy organization, found the Pfizer and Moderna vaccines ethically uncontroversial according to the North Dakota Department of Health.

The justice was accused of repeating claims made by healthcare workers.

Thomas was joined in his opinion by two justices.