Perhaps vaccinating food service workers would be good?
From the Hawaii Department of Health Website:
An employee of the following food service businesses has been diagnosed with hepatitis A. This list does not indicate these businesses are sources of this outbreak; at this time, no infections have been linked to exposure to these businesses. The likelihood that patrons of these businesses will become infected is very low. However, persons who have consumed food or drink products from these businesses during the identified dates of service should contact their healthcare provider for advice and possible preventive care.
| Establishment | Island | Location | Dates of Service |
| Baskin-Robbins | Oahu | Waikele Center | June 17, 18, 19, 21, 22, 25, 27, 30, and July 1 and 3, 2016 |
| Costco Bakery | Oahu | Hawaii Kai | June 16-20, 2016 |
| Sushi Shiono | Hawaii | Waikoloa Beach Resort, Queen’s MarketPlace (69-201 Waikoloa Beach Drive) | July 5-8, 11-15, and 18-21, 2016 |
| Taco Bell | Oahu | Waipio (94-790 Ukee Street) | June 16, 17, 20, 21, 24, 25, 28, 29, 30, and July 1, 3, 4, 6, 7, and 11, 2016 |
As of today, 93 people have been reported with hepatitis A on Oahu or people on Hawaii, Kauai, and Maui that had visited Oahu. No none source has been announced.