The alert prohibits the hunting and consumption of animals that could carry the plague and asks the public to report any suspected case of plague or fever without a clear cause and to report any sick or dead groundhog.
The Sunday warning follows four cases of plague reported among people from Inner Mongolia last November, including two of pneumonic plague, a more deadly variant of the plague.
Bubonic plague, known as “black plague” in the Middle Ages, is a highly infectious and often fatal disease that is spread mainly by rodents.
Plague cases are not uncommon in China, but outbreaks have become increasingly rare. From 2009 to 2018, China reported 26 cases and 11 deaths.