A 2009 outbreak introduced a new strain of H1N1 flu that never left. Today, doctors and researchers see parallels between that pandemic and the coronavirus, 2019-nCoV, according to a story on the USA Today website.
The coronavirus outbreak, which sees more cases reported by the hour, is so far largely contained to mainland China; fewer than 400 cases have been reported elsewhere.
Doctors and scientists are track the new threat, studying past outbreaks to determine what the new coronavirus might do next.
Many researchers think the new virus might be here to stay. Like swine flu, it could become a regular part of the winter respiratory bugs that cause common colds and other illnesses.