State health officials have identified another food service worker with hepatitis A as Oahu’s largest outbreak of the viral liver disease in more than a decade continues to grow.

A new case of hepatitis A was confirmed in an employee at a Taco Bell in Waipio, prompting the state Department of Health on Friday to warn customers of the fast-food restaurant at 94-790 Ukee St. from June 16 through Monday that they might have been exposed to the disease.

Anyone who ordered food or drink at the store when the employee was working should contact their health care provider about the possibility of receiving a hepatitis A vaccine or an immune globulin, which could provide some protection against the disease if administered within the first two weeks after exposure, officials said.

The warning comes three days after the state announced that an employee at the Baskin-Robbins store in Waikele had been afflicted with hepatitis A.

The department also advised anyone who ordered food or drink at the ice cream shop from June 17 to July 3 to contact their health care provider about the possibility of receiving a hepatitis A vaccine.

“It is important to note that neither the Waikele Baskin-Robbins nor the Waipio Taco Bell have been identified as the source of infection for this outbreak,” state epidemiologist Dr. Sarah Park said in a press release. “These are merely places where the victims were employed.”

Park added that chances are low that customers of those food establishments will become infected.

“But to prevent possible additional cases, we are notifying the public so they may seek advice and help from their health care providers,” she said.

The actual dates that the Taco Bell employee worked were June 16-17, 20-21, 24-25 and 28-30; and July 1, 3-4, 6-7 and 11.

Officials cautioned that more food establishments could be affected as the number of cases continues to grow.

The department announced earlier this week that the outbreak had grown to 52 cases, with 16 of the victims getting hospitalized.

Anyone with symptoms of hepatitis A — especially workers who handle food — should stay home and contact their health care provider, officials said. They added that food service employees in general should pay strict attention to good hand-washing and food-handling practices.

Symptoms of hepatitis A infection include fever, fatigue, loss of appetite, abdominal discomfort, dark urine, diarrhea and yellow skin and eyes.

Officials say a vaccination provides the best protection, but there are other things that can be done to stop the spread of infection, including washing hands with soap and warm water after using the restroom, after changing a diaper and before preparing food. Thoroughly cooking food can also help prevent infection.

Some people seeking vaccination have expressed frustration that various pharmacies do not have the hepatitis A vaccine.

Gail Ogawa of the state Disease Outbreak Control Division said the island’s major pharmacies have assured the division that they will be resupplying their outlets with additional vaccine — if not with new supplies, then by moving inventories from store to store.

Ogawa suggested that anyone looking for a hepatitis A vaccination should call ahead rather than just show up. She said sometimes there are insurance issues to work out or a formal appointment is required.

For a list of vaccinating pharmacies, visit health. hawaii.gov/docd/files/ 2013/07/IMM_Adult_ Resource_List.pdf or call the Aloha United Way information and referral line at 211.

Additional information about hepatitis A can be found on the DOH website at health.hawaii.gov/docd/hepatitis-a-outbreak-2016.