… Kennedy’s claim about fetal debris specifically refers to the rubella component of the MMR vaccine. The rubella virus is generally grown in a human cell line known as WI-38, which was originally derived from lung tissue of a single elective abortion in the 1960s. This cell line has been used for decades, and no new fetal tissue has been used since. Certain vaccines for other diseases, such as chickenpox, hepatitis A and rabies, have also been made by growing the viruses in fetal cells. These cells are used not because of their origin, but because they provide a stable,...