South Korea's method of stopping the spread of infection by taking far more tests than any other country can have negative effects in the future, says Johan Giesecke.
- The Swedish system of allowing the disease to spread fairly freely leads to a large part of the population's immunity, if there is a second wave. In addition, health care professionals who are otherwise healthy can return to work after the illness without protective clothing, says Johan Giesecke, former state epidemiologist.