Pollution in China and Iran are worsening the coronavirus
The baffling spread of the novel coronavirus has given many scientists and policymakers pause. There may be some important clues in the patterns the disease is leaving that tell us quite a bit about what conditions can hasten its spread and even worsen its lethality. So far, the areas of the world where most people are dying of the disease – called the case-fatality rate – are densely populated cities …
