Enteric refers to the gastrointestinal tract and South Korean officials say it may be cholera or typhoid.
On Sunday, state news agency KCNA detailed prevention efforts, including quarantines, “intensive screening for all residents,” and special treatment and monitoring of vulnerable people such as children and the elderly.
A national “Rapid Diagnosis and Treatment Team” is working with local health officials, and measures are being taken to ensure that farming is not disrupted in the key agricultural area, KCNA said.
Disinfection work is being carried out, including of sewage and other waste, to ensure the safety of drinking and household water, the report said.
KCNA also reported another 19,310 new fever cases on Sunday, without detailing how many of those patients had tested positive for the coronavirus.
Overall more than 4.6 million have shown fever symptoms since a Covid outbreak was first acknowledged in mid-May.