From Peter Sutton,Guildford, Surrey, UK
I agree with much of the logic in Michael Marshall’s appraisal of zero-covid policies (2 April, p 27). With no vaccines, governments and health bodies were right to attempt to limit covid-19 in 2020.
However, it isn’t clear how long one needs to persist with a zero-covid strategy – three months, 30 months, 300 months? It is crucial to set end points. Marshall also states that a successful zero-covid policy would mean omicron probably wouldn’t have evolved. This implies that a less damaging, more contagious variant is bad. Right now, most people see omicron as a good development.
