Hepatitis A Vaccine

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Vaccination is the best protection against hepatitis A and its complications. Hepatitis A is a liver infection caused by a virus (hepatitis A virus).

The vaccine

Vaccination is the best protection against hepatitis A and its complications. The vaccine is indicated for anyone who wants to reduce their risk of catching hepatitis A. Several doses of vaccine are required to ensure the best possible protection.

Symptoms after vaccination

Some symptoms may be caused by the vaccine (e.g. redness at the injection site). Other problems may occur by chance and are not related to the vaccine may occur by chance (e.g. cold, gastro, headache).

Hepatitis A vaccine is safe. Most reactions are harmless and do not last long.

Frequency Possible reactions to the vaccine What to do

In most cases
(more than 50% of people)

  • Pain at the injection site
  • Apply a cold, damp compress at the injection site.
  • Use medication for fever or discomfort if needed.
  • See a doctor symptoms are severe.

Very often
(less than 50% of people)

  • Redness and swelling at the infection site
  • Headache, muscle soreness, fatigue
  • Irritability in children aged 12 to 23 months

Often
(less than 10% of people)

  • Skin rash in children aged 12 to 23 months
  • Fever, gastro intestinal upsets, respiratory symptoms

Note: Reactions at the injection site are less common among children.

We recommend that you stay at the clinic for at least 15 minutes after vaccination because allergic reactions may occur. If an allergic reaction occurs, the symptoms will appear a few minutes after the vaccination. The person giving the vaccine will be able to treat this reaction immediately.

For any questions, contact the person giving the vaccine, or Info-Santé 811 or your doctor.

Last update: October 22, 2015 11:47 AM

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