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Two Nebraskans have been identified Tuesday as the state's 22nd and 23rd confirmed cases of the coronavirus.

One of the positive tests is a man from Knox County in his 30s. He had traveled to another state where community spread of COVID-19 has been reported, the North Central District Health Department announced Tuesday afternoon, adding that he is self-isolating at home.

Four businesses were named as potential low-risk exposure sites: Dollar General in Hooper from 1-4 p.m. Saturday, Country Market in Bloomfield from 9:30 a.m.-11:30 a.m. Sunday, Walmart in Norfolk from 2-3:30 p.m. and the Sonic drive-thru in Norfolk from 3-3:30 p.m.

The Sarpy County resident who tested positive is also a man in his 30s. He had close contact with an out-of-state business traveler who has since tested positive for coronavirus, according to the Sarpy/Cass Health Department, and has been self-isolating at home since Saturday.

The announcements followed the Douglas County Health Department's confirmation of three new cases of COVID-19.