AUBURN – The Southeast District Health Department has confirmed the first positive case of coronavirus disease 2019 (COVID-19) within the district.

The person is a man in his 60s who lives in Nemaha County. He recently returned from travel to Vail, Colo. Vail's website describes the city of 5,000 people as an international resort.

A health district press release says the man  is experiencing mild symptoms of COVID-19 and is currently self-isolated. Contact investigations are in progress.

The SEDHD, with the assistance of the Nebraska Department of Health and Human Services, is working to assess the risk for potential exposures.

All identified close contacts will be asked to self-quarantine and be actively monitored by public health officials for fever and respiratory symptoms.

According to the Department of Health and Human Services, three additional cases of COVID-19 were identified in three Nebraska counties on Thursday, and one of the individuals is hospitalized.

Two cases are Lincoln County residents. One is a female in her 40s who recently traveled to Colorado and the other is a male in his 20s who was in close contact with a person who previously tested positive for COVID-19. Both new cases are self-isolating at home, DHHS said.

One case is a man in his 40s from Sarpy County with underlying health issues. He is currently hospitalized.

All local health departments involved have initiated close contact investigations to identify people who came into close contact to help prevent further spread. All identified close contacts will self-quarantine and be actively monitored twice daily by public health officials for fever and respiratory symptoms.

As of Thursday night, the state case total is 33.