RELATED: Coronavirus: Tracking Central California COVID-19 cases
Officials say the cases are travel-related. Three of the patients are between the ages of 18 and 25, and the fourth is between the ages of 26 and 40.
The department says the four people are self-isolating at home.
Health officials said the 16 positive cases in the county come from Visalia, Dinuba, Porterville and Tulare.
Earlier Monday, new cases of COVID-19 were reported in Madera County, and health officials warned there could be more confirmed within the week.
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