Prof Peter Singer highlights lessons from the COVID-19 pandemic at Global Ethics Lecture

Published: 11 Sep 2023

Professor Peter Singer, Ira W. DeCamp Professor of Bioethics in the University Center for Human Values at Princeton University, delivered the second Global Ethics Lecture, organized by the Centre for Biomedical Ethics at NUS Medicine on 24 August 2023.

He highlighted five lessons to be taken away from the COVID-19 pandemic, in the areas of: (i) Allocating ICU beds, (ii) Using human volunteers for challenge trials, (iii) Lockdowns, (iv) Vaccine mandates and distribution, and (v) Preventing future pandemics.

Abandoning the ICU Admission Lottery

Professor Singer advocated that ICU admissions should be based on maximizing utility, as some countries did at the height of the pandemic when faced with bed shortages. Those who would be likely to survive if given treatment, and have more years ahead of them, should be prioritized, rather than the first-come-first-served system. Professor Singer rebutted claims of ageism, stating it is merely a fact that older persons will live less long if their life is saved, and quality of life starts to decline after a certain age. Thus, the utility of saving a much older person over a younger one is difficult to justify.

A reasonable and less objectionable alternative Professor Singer raised was also prioritarianism, where ICUs prioritise those who are more likely to die. This would still be better than the current lottery system, and lead to greater benefit for society overall.

Use of volunteers in human challenge trials

Moving on to human challenge trials, Professor Singer proposed applying the principle of risk parity to human research on vaccines. Society viewed it as permissible to expose some members of society (such as healthcare workers) to a given level of risk because the cost of not doing so would have been too great for others. Therefore, Professor Singer claimed, it would also be permissible to expose fully informed volunteers to a comparable level of risk in the context of promising research into a given pandemic disease. As each day delaying a vaccine during the COVID-19 pandemic cost thousands of lives, the risk parity principle should have been applied to research in the same way it was for the healthcare industry and other frontline sectors.

Vaccines

The third lesson Professor Singer identified to take away from the pandemic was regarding vaccine mandates and distribution. Professor Singer justified mandating vaccination as a case of soft paternalism, where a large portion of the population was opposed to vaccination based on misinformation or false beliefs, and therefore it would be justifiable to ensure they are correctly informed before allowing them to not be vaccinated. Another stronger justification was Mill’s harm principle, as Professor Singer cited evidence that not being vaccinated increased the risk of harm to others, especially in vulnerable settings such as hospitals and care homes.

Regarding vaccine distribution, Professor Singer again took a utilitarian view that it should be done to maximise benefit to society as a whole. For example, healthcare workers should be given the highest priority since they are integral to saving lives. Additionally, those at greatest risk of dying should get priority despite having fewer years left to live on average. Since younger people had a lower risk of death, vaccinating them first would be less beneficial overall.

Addressing objections about racial bias in vaccine distribution, Professor Singer replied that race should only be considered where it indicates higher medical risk.

Furthermore, he highlighted that it is crucial to strike a balance in global distribution, where the priority should be on maximizing life-years globally, and not focused on a single country. Despite 72% of the world having received at least one dose of a vaccine, a majority of the remaining 28% is comprised of members of low-income countries. While the age distribution in these countries is much lower, and therefore prioritizing vaccines to them may have saved less life-years overall compared to higher-income countries, there is an element of distributive justice that demands attention beyond mere objective calculation of life years saved.

Lockdowns

Briefly addressing the permissibility of lockdowns early in the pandemic, Professor Singer said that a better means of assessing and comparing different harms and benefits is necessary to making more informed decisions regarding such drastic measures.

Future Prevention

Concluding his lecture, Professor Singer discussed the prevention of future pandemics. He highlighted that a majority of new diseases originate from animals, and modern farming practices have only increased the chance for such diseases to mutate and transmit across species. Factory farming involves cramped conditions and greatly stresses animals, creating an ideal home for viruses to mutate.

Concluding Thoughts

Professor Singer’s lecture was a good reminder of the necessity to draw lessons from the pandemic and the ethical issues faced. Even as the world continues to recover from its effects, we must look ahead and think of solutions to such problems that are justifiable and practical to implement, so as to reduce the tangible human costs in the next pandemic.