According to the following, Moderna in the U.S.A. is *not* one of the five companies using cell lines derived from human fetuses for a COVID-19 vaccine. The following is interesting, though.
Abortion opponents protest COVID-19 vaccines use of fetal cells
AAAS
By Meredith Wadman
Jun. 5, 2020 , 6:15 PM
https://www.sciencemag.org/news/2020/06/abortion-opponents-protest-covid-19-vaccines-use-fetal-cells [Excerpt:]
*Clarification, 8 June, 12:10 p.m.: This story has been updated to clarify that
the Vatican approves of Catholics receiving vaccines manufactured using human fetal cells only in the absence of alternatives.