It’s a shame that 3 people in the placebo group died during the trial. In the spring semester I was teaching bioethics and one of the term paper topics I assigned was whether it’s ethical to conduct placebo-controlled trials when effective vaccines were already available. Every student who chose to write on the topic said no, but of course the real world is more complicated. Vaccine being available for the rich doesn’t mean it’s available for the poor. But still it’s a great shame that rich countries are hoarding vaccines in the hope of some of their anti-vexxers might change their mind, while people who chose to participate in a phase iii trial (who obviously are not anti-vaccine) died because they got a placebo.