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Hepatitis A

13-minute read

Key facts

  • Hepatitis A is a viral infection of the liver.
  • It can be spread by consuming contaminated food or drink.
  • Symptoms include tiredness, fever, nausea and vomiting.
  • Most people with hepatitis A make a full recovery — it does not cause chronic (long-term) liver disease.
  • Vaccination and good hygiene can protect you against hepatitis A.

What is hepatitis A?

Hepatitis A is a viral infection of the liver that is rare in Australia. Most infections are caused from consuming contaminated food or water.

The illness usually lasts a few weeks, and most people make a full recovery. Hepatitis A does not cause chronic (long-term) hepatitis.

Exposure to hepatitis A gives life-long protection from further infections.

There are other types of hepatitis.

What are the symptoms of hepatitis A?

Symptoms usually start about 4 weeks after you catch the virus.

People who do have symptoms may have:

The illness is usually mild and can last between 1 and 3 weeks.

Young children who become infected with hepatitis A often have no symptoms.

CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help.

What causes hepatitis A?

Hepatitis A is caused by the hepatitis A virus (HAV).

You can get the hepatitis A virus from:

Most people get hepatitis A when travelling overseas.

When should I see my doctor?

See your doctor if you have symptoms of hepatitis A and:

FIND A HEALTH SERVICE — The Service Finder can help you find doctors, pharmacies, hospitals and other health services.

How is hepatitis A diagnosed?

Your doctor will organise a blood test to see if you have hepatitis A.

Hepatitis A is a notifiable disease. This means that if you have hepatitis A, the lab must tell the local public health authority. They may ask to talk with you to try and find out where you caught the infection.

How is hepatitis A treated?

There is no medicine to treat hepatitis A. But there are things you can do to help with the symptoms. Your doctor may suggest that you:

To protect your liver, you should not drink any alcohol while you have hepatitis.

How can I avoid infecting others?

If you have hepatitis A, you are infectious and can spread the illness. This infectious period lasts from about 2 weeks before the symptoms appear to a week or so after having jaundice. If you don't get jaundice, you can be infectious for 2 weeks after getting symptoms.

If you have hepatitis A, take care not to spread the infection to other people by:

Talk with your doctor before returning to work or school.

If you live with someone with hepatitis A, your doctor may give you a vaccination or an immunoglobulin injection. This can stop you getting ill, if given within 2 weeks of contact with the infectious person.

What are the complications of hepatitis A?

Liver failure is a rare complication of hepatitis A. It's more likely in older adults and people with chronic liver disease.

Can hepatitis A be prevented?

The hepatitis A virus can live on your hands for up to 4 hours. It can last on food kept at room temperature for much longer.

To prevent hepatitis A, always wash your hands:

Practising safe sex will also help prevent catching the disease.

You can also be vaccinated against hepatitis A. Your doctor may suggest you are vaccinated if you're planning to visit a region where hepatitis A is common.

Hepatitis A outbreaks due to imported frozen fruit

In Australia, there have been outbreaks of hepatitis A caused by people eating frozen berries that have been imported. When this happens:

Cooking these products gets rid of the risk of hepatitis A and other potential foodborne infections.

Hepatitis A vaccine

Vaccination is your best protection against hepatitis A. This table explains how the vaccine is given and who is covered by the National Immunisation Program Schedule.

Who should be vaccinated?

Groups that are recommended to have the hepatitis A vaccine are:

  • Aboriginal and/or Torres Strait Islander children in the Northern Territory, Queensland, South Australia and Western Australia
  • people with medical risk factors — such as chronic liver disease, haemophilia and intellectual disabilities
  • people whose work increases their risk of getting hepatitis A — childcare and preschool workers, plumbers, sewerage workers,
  • people aged 1 year or older who are travelling to places where hepatitis A is common
  • people whose lifestyle increases their risk of getting hepatitis A — such as males who have sex with males and people who inject drugs

What age is it recommended?

The vaccine is recommended from the age of 12 months, if needed.

In Aboriginal and Torres Strait Islander children it’s recommended that the doses are given at:

  • 18 months
  • 4 years

How many doses are required?

2 doses — 6 months apart

How is it administered?

Injection

Is it free?

The vaccination is free for Aboriginal and Torres Strait Islander children who live in: Queensland, the Northern Territory, Western Australia or South Australia. For everyone else, there is a cost.

Common side effects

The vaccine is very safe. Common side effects are pain, redness and swelling where the needle went in. You might also get a mild fever.


Resources and support

The National Hepatitis Infoline can help you find free hepatitis information and local support services. Call them on 1800 437 222.

To learn more about hepatitis A in languages other than English, visit the Health Translations website.

If you need to know more about hepatitis A you can call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available to speak with 24 hours a day, 7 days a week.

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