Enteric refers to the gastrointestinal tract and South Korean officials say it could be cholera or typhoid.
On Sunday, the state news agency KCNA released 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 steps are being taken to ensure that agriculture in the key farming area is not disrupted, KCNA said.
To ensure the safety of drinking water and domestic water, work is underway on disinfection, including sewage and other waste, 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.
In all, more than 4.6 million have exhibited fever symptoms since a Covid outbreak was first recognized in mid-May.