Two months ago I blogged about virus data, and noted that a “natural experiment” was happening in Scandinavia, where Sweden was trying a strategy of herd immunity. It appears to be a complete failure.
The idea was that herd immunity would cause the number of new COVID-19 cases to decline, without the shutdown policies and economic impact adopted by its Scandinavian neighbors. But the rate of new cases in Sweden hasn’t declined, while its neighbors’ all have:
