What should you know about hepatitis A prevalence?

Prevalence describes how often an infection is found in a population or setting. It is not a personal diagnosis. Hepatitis A spreads mainly when virus from an infected person reaches the mouth, often through contaminated food, water or hands. People may have no symptoms, especially children, and can still pass the infection to others.

The chance of exposure depends on local sanitation, household or community contact, travel, food handling and vaccination history. Symptoms can include nausea, loss of appetite, feeling generally unwell and dark urine. These symptoms can have other causes, so they do not confirm hepatitis A.

If you may have been exposed, contact a clinician promptly to discuss timing, symptoms and whether vaccination or another preventive measure is appropriate. A clinician may use history, examination and a Liver Function Test alongside targeted blood tests. Avoid preparing food for others if you feel unwell, wash hands carefully after using the toilet, and do not share towels or utensils.

If you are planning travel or work involving food or close contact, ask whether Hepatitis A Vaccination is suitable. Do not interpret population figures as a prediction of your individual risk.

Arrange medical advice for new jaundice, dark urine, ongoing vomiting, marked tiredness, poor fluid intake or symptoms after a known exposure. Seek urgent help if confusion, fainting, severe weakness or inability to keep fluids down develops.

Ask: Could my symptoms fit hepatitis A or another liver problem? Which tests are needed? Was my possible exposure recent enough for preventive care? When can I return to food preparation, school or work?