Nature Reviews Drug Discovery 14, 642–662 (2015)

In the original article, some descriptions of the properties of viruses in Tables 1 and 2 were inaccurate; the tables have been updated to reflect this. Also, on page 656, Newcastle Disease Virus (NDV) was accidentally described as a double-stranded RNA virus. NDV is a single-stranded RNA virus.

The authors would like to acknowledge R. C. Hoeben and B. G. van den Hoogen for alerting them to these errors.