SUMMARY
The Covid-19 pandemic inspired a fierce discussion on pros and cons of vaccinations among Christians. Frequently, this emotional dispute is not based on facts, and this might be due to the fact that the decision situation (“to be vaccinate or not to be vaccinated”) is quite complex. In this paper we develop a risk-analytic model of the vaccination decision and explain the benefits of vaccinations against SARS-Cov-2 on different levels. Furthermore, we show that the Great Commandment of love calls for avoiding all harm to the neighbor even if this harm is indirect and under uncertainty. Consequently, it is a Christian duty to love one’s neighbor and be vaccinated.