As your editorial on sharing vaccines with poor countries (September 19) points out, we know that two doses don’t guarantee protection against infection, but we do know that they make a serious infection extremely unlikely. A first or second jab is much more beneficial than a third, protecting against serious illness, death, and subsequent transmission. Those outside the rich world are not protected due to the scarcity of supply. Their first or second jab should take precedence over our third.
Politicians may find this policy difficult, fearing critics who might accuse them of giving “our” advantage to outsiders. There is a simple solution. We should refuse this third vaccination. I, a healthy retiree who received two doses, refused the third jab, asking that it be sent to those who will benefit most from it, and I invite others to do the same. It’s not just altruistic; limiting the extent of the pandemic is a benefit for all of us.