How best for a Christian to explore the ethics of a Covid-19 vaccine that might use farmed cell-lines from aborted foetuses?

I looked through the [CMF website](https://www.cmf.org.uk/resources/publications/content/?context=article&id=27130) at their Briefing paper [When demand outstrips supply: A Christian view of the ethics of healthcare resource allocation during the COVID-19 pandemic](http://admin.cmf.org.uk/pdf/When_demand_outstrips_supply-COVID19_briefing_paper.pdf) : > “The British Medical Association (BMA) has recently produced guidance > around the ethical issues presented by the COVID-19pandemic.8 NICE has > also produced a rapid guideline for adult critical care during the > pandemic, which includes guidance for decision-making around > escalation. 9 In addition, the Royal College of Physicians (RCP) has > issued guidance, in conjunction with other stakeholders such as the > General Medical Council, the Faculty of Intensive Care Medicine, the > Intensive Care Society, royal colleges and faculties.10 As Christian > doctors, we must consider how we can respond to the ethical challenges > posed. Here we will attempt to consider some of the issues involved, > and how to think about them biblically, using Beauchamp and Childress’ > widely recognised four pillars of medical ethics11 as a framework.” However, it must be too soon for a briefing paper on whether any of the current seven Covid-19 vaccinations produced have utilised cell-lines from aborted foetuses. The matter of demand for vaccines was not included. Then I looked at a tagged blog, posted 20 November 2020, which sounded promising, [*COVID-19 vaccines: the wider ethical questions for Christians*](https://cmfblog.org.uk/2020/11/20/covid-19-vaccines-the-wider-ethical-questions-for-christians/) . Alas, no mention was made of the ethical issue I wish to explore. Some success came via a contact working professionally in the realms of Christian ethics. He sent a pdf of an article written by a colleague of his in a Catholic journal, *Anscombe Bioethics Centre – Friends’ Newsletter, Summer 2020, Issue 47.* (His link to the pdf will not open when I copy it.) Dr Helen Watt, Senior Research Fellow of the Anscombe Bioethics Centre, wrote the article, pp 9-12. > “… Vaccines are normally, though not always,4 produced in living > cells. While they can be generated (as with some COVID-19 vaccines in > the making) in cells derived from ethically uncontentious sources such > as insects,5 tobacco plants,6 and hamster ovaries,7 they can also be > produced in cell-lines made from tissue derived from an aborted unborn > child. One such cell-line used in COVID-19 vaccine research (including > a project of the University of Oxford8 ) is the HEK 293 cell-line > modified from tissue taken from the kidney of an unborn child aborted > probably in 1972, while another is the PER C6 cell-line from the > retinal tissue of an 18-week baby aborted in 1985.” **I wish to know both ethical considerations involved and how to identify which Covid-19 vaccinations might have such ethically questionable ‘ingredients’.** I will not go to popular media outlets for this as a huge amount of disinformation is being bandied around. This question is addressed to Christians who have ethical compunctions against any use of aborted foetuses, which transcends denomination. I note this related question indicates deep concern but I seek to know how to find out if that's being used with some vaccines. Edit: this question become more important since the Church has now made a statement regarding the newest vaccine from Johnson and Johnson. See this