COVID-19 and Tobacco: More questions than answers

This month’s journal features a collection—largely letters and commentaries—on COVID-19 and smoking. We made a decision to rapidly publish these, acknowledging that publishing work rapidly carries risks in terms of the degree of scrutiny that can be afforded. This has to be balanced against the need for evidence in the context of a rapidly evolving pandemic involving a poorly understood virus. These should therefore be considered preliminary, and in many cases hypothesis-generating. They serve to provide an overview of key questions in this rapidly evolving area.