Hawaii hepatitis A outbreak grows to 31: 'Identifying the source of infection is a challenge' - Outbreak News Today | Outbreak News Today Outbreak News Today
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In a follow-up to a report last week on the hepatitis A outbreak on the island of Oahu, Hawaii health officials say additional cases have been identified bringing the outbreak total to 31.

Image/Peggy_Marco

Image/Peggy_Marco

Hawaii State Department of Health (DOH) staff worked through the holiday weekend to conduct interviews with the newly identified cases in an effort to identify the cause of infection.

“Identifying the source of infection is a challenge,” said State Epidemiologist Dr. Sarah Park. “Hepatitis A has a long incubation period lasting anywhere from two weeks to as long as 50 days. Accurately recalling all of the foods consumed and locations visited during the period when infection could have taken place is challenging for many, especially those who are still feeling ill.”

Patients infected with hepatitis A virus are most contagious during the week before the symptoms start until at least one week after the start of the first symptoms. “Since people are contagious before they feel ill, we are very concerned about the disease unknowingly being spreading to others,” said Health Director Dr. Virginia Pressler.

The virus is found in the stool of people with hepatitis A infection and is usually spread by eating contaminated food or drinking water, and can be spread through close personal or sexual contact. A person who has hepatitis A can easily pass the disease to others within the same household. For this reason, DOH investigators are currently reaching out to individuals who were in contact with those who have or had hepatitis A.

Hepatitis A vaccine or immune globulin (a substance made from human blood plasma that contains antibodies to protect the body against diseases) administered within the first two weeks after exposure may provide some protection against the disease. Unvaccinated individuals recently exposed to the disease are encouraged to talk to their healthcare providers about these preventive measures.

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