Date: July 16, 2019

Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm this afternoon. Wind southwest 20 km/h gusting to 40. High 29. Humidex 37. UV index 7 or high.


Feels like 36C

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Travel Immunization Links


Immunization Clinics

Twinrix® Vaccine

This page was reviewed or revised on Thursday, July 21, 2016 4:05 PM

What is Twinrix® ?

Twinrix® is a combination vaccine that gives protection against Hepatitis A & Hepatitis B.

What is Hepatitis A?

  • Hepatitis A is a viral infection of the liver that may cause nausea, fever, abdominal pain, loss of appetite and jaundice (yellowing of skin and eyes).
  • Commonly caused by eating or drinking food or water contaminated by fecal matter, or if hands are not washed thoroughly after using the toilet and before eating or handling food, the virus can be transmitted to others.
  • More common in developing countries, and frequently found in raw shellfish.
  • After the virus enters the body it can take 15-50 days before you may feel sick and symptoms can last for two to four weeks or longer. (It is common for young children to show no symptoms when they are infected).

What is Hepatitis B?

  • A viral infection that may cause flu-like symptoms, abdominal pain and jaundice.
  • This may progress to cause serious liver damage or even death.
  • A small percentage of those infected become chronic carriers and remain infectious for life.
  • Acquired through contact with blood or body fluids of an infected person, or from contact with objects contaminated with blood, such as used needles or razor blades.
  • No effective treatment or cure is presently available.

Who should get the Twinrix® vaccine?

  • Anyone travelling to countries where Hepatitis A and B is a risk.
  • Anyone who works in a job where they are in contact with fecal matter, blood, and body fluids.
  • People travelling to developing regions, including some popular vacation destinations, are at risk.
  • Resorts do not offer protection and avoiding potentially contaminated food or drink is difficult.

Who should NOT get the vaccine?

  • Anyone who is ill with a fever or infection worse than a cold should usually wait until they recover.
  • Allergy to any component of the vaccine.

Adverse reactions:

  • Mild soreness or redness at the site of the injection.
  • Headache, fatigue, or a slight fever may occur in the first 24 hours aft the injection.

How many doses of the vaccine is necessary for protection?

  • Three doses of Twinrix® are needed: after the first dose, follow with a second dose one month later. A third booster dose in 6-12 months will offer long-term protection.
  • At least two doses of the vaccine are necessary, spaced one month apart in order to have protection.
  • One dose offers no protection, so allow yourself adequate time before travel to get properly vaccinated.
  • There is an alternate accelerated dose schedule for travellers leaving within a month.

How to prevent Hepatitis A (viral)

  • Wash hands thoroughly after using the toilet, changing diapers or any other contact with fecal material, and before handling or eating food.
  • Avoid eating undercooked or raw shellfish. If travelling outside Canada, be sure the water you drink has been purified.
  • Consider vaccination if your personal and/or professional life puts you at risk (i.e. sewage worker, injectable drug user).

How to prevent Hepatitis B

  • Avoid risky behaviours that put you at risk for contracting Hepatitis B.
  • You can get Hepatitis B from: sex with an infected person, sharing needles, or contact with the blood, saliva, semen, or vaginal secretions of an infected person or items contaminated by these body fluids. Infected people who feel fine can still pass the virus to others.
  • Adopt safe sex practices such as using a condom during sex.
  • Avoid tattooing or body piercing.
  • Do not share razors or needles.
  • Do not use illicit injectable drugs.

A severe allergic reaction, although rare, may occur following the use of this or any vaccine. Therefore, it is necessary to remain in the building for at least 15 minutes after receiving your injection.

Any serious reaction to vaccines should be reported to the family physician and to Lambton Public Health at 519-383-8331.

Call Lambton Public Health at 519-383-8331 to update your (and your family's) immunization record when you have a vaccine at your doctor's or elsewhere.