A sushi restaurant employee believed to have been infected in a hepatitis A outbreak on the island of Oahu is recovering while almost all other staff members are cleared for work.

All workers were tested after the employee was diagnosed, West Hawaii Today reported (http://bit.ly/2a7JFqV ).

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Two Shiono Sushi Waikoloa workers are waiting for test results, and two others who were negative for the virus need health department approval to return to their jobs.

The infected employee has to test negative for the virus before being allowed to return to work, a restaurant manager said.

Health officials say people without a hepatitis A vaccination should contact their doctors if they dined at the restaurant July 5-8, July 11-15 or July 18-21 when the employee worked.

The health department said in a statement that the risk of infection was low for customers, but that they should contact their doctors as a precaution.

There have been no reports so far of customers becoming infected, according to restaurant management.

The outbreak's source is unknown.

There are 93 confirmed cases so far.

Symptoms can include fever, abdominal discomfort and diarrhea, among others.

Health officials confirmed that a Baskin-Robbins ice cream store employee and a Taco Bell worker were also infected.