December 13, 2021 Department of Philosophy Ethics Palmer Are Pig-To-Human Kidney Transplants Ethical? A kidney grown in a genetically altered pig and successfully transplanted to a human patient raises questions about animal ethics. December 15, 2020 COVID-19 Vaccine Ethics Martin Peterson Ethics of the CDC’s Recommended COVID-19 Vaccine Distribution Plan Martin Peterson, an expert in ethics and decision theory, explains the ethics of the CDC’s proposed COVID-19 vaccine distribution plan.