Q&A on the Wuhan Coronavirus

An outbreak of viral pneumonia that began in the central Chinese city of Wuhan at the end of 2019 has now sickened thousands, and led to more than 100 deaths.

Although much is still unknown, scientists have made rapid progress in understanding the culprit, a new virus in the coronavirus family, which temporarily goes by the name 2019 novel coronavirus, or 2019-nCoV.

As the virus has spread, however, misinformation has, too. We’ve written about several bogus claims about the new coronavirus, and will continue to debunk stories as...