From this search: (covid-19 OR "novel coronavirus") Filters: Publication date from 2019/01/01; Bioethics
From the British Medical Journal. See link below.
For links to more resources, especially unpublished information, please go to Farhad Shokraneh, Rapid Response:Keeping Up with Studies on COVID-19: Systematic Search Strategies and Resources. BMJ 2020;368:m1199.
Some other articles on Covid-19 that you might be interested in, some focus on ethics, some do not. Also search in other news outlets to see articles (it's not always easy to provide a URL to them).
From Michigan Experts, an interdisciplinary listing of UM faculty & research areas.