• Editorial: low population mortality from COVID‐19 in countries south of latitude 35 degrees North – supports vitamin D as a factor determining severity. Authors’ reply

  • Contact Tracing Assessment of COVID-19 Transmission Dynamics in Taiwan and Risk at Different Exposure Periods Before and After Symptom Onset.

  • Moving Personal Protective Equipment Into the Community Face Shields and Containment of COVID-19

  • Changes in contact patterns shape the dynamics of the COVID-19 outbreak in China