https://www.siliconvalley.com/2021/03/03/u-s-catholic-bishops-group-expresses-moral-concern-over-johnson-johnson-vaccine/

(CNN) — As officials and health experts race to get Americans vaccinated against Covid-19, some Catholic bishops have weighed in to discourage Church members from getting the latest, single-shot vaccine from Johnson & Johnson when alternatives are available.

The US Conference of Catholic Bishops, as well as at least 6 other dioceses from across the country have released statements expressing “moral concerns” over the shot due to its use of lab-grown cells that descend from cells taken in the 1980s from the tissue of aborted fetuses.