What is hepatitis C?

Hepatitis C is an infectious virus, carried in the blood and transmitted by blood-to-blood contact. The hepatitis C virus affects the liver.

How many people have hepatitis C?

It has been estimated that as many as 300,000 Canadians are infected with hepatitis C. More than 5,000 individuals in Canada get this virus each year. The World Health Organisation (2000) estimated that world wide, 170 million people are infected with the hepatitis C virus.

Why is hepatitis C a health concern?

The hepatitis C virus was identified in 1989. However, hepatitis C has been around for a very long time and many infected people do not know they have the virus. This is because for some, there are no symptoms and for others, the symptoms may not show up for 20 to 30 years. During this time, they can spread the disease to other people. Those infected with the hepatitis C virus may not know they have this disease until damage has already been done to their liver. Its important to know if you are at risk.

How do I know if I may be at risk?

Hepatitis C is spread through contact with the blood of infected people. If you had a blood transfusion or were treated with a blood product before 1992, you may have been exposed to hepatitis C. Currently, all blood and blood products are carefully screened for hepatitis C.
Blood-to-blood contact can also occur if you:
  • Ever, even once, shared needles, straws used for snorting drugs, pipes, spoons and other drug-related equipment.
  • Got a tattoo or had body piercing or acupuncture where the operator used unsterile or homemade equipment or unsterile techniques.
  • Were pricked by a needle that had infected blood on it (this could happen in the workplace).
  • Were born to a mother who has hepatitis C.
  • Have engaged in unprotected sexual activity that includes contact with blood or the exchange of blood.
  • May have undergone medical and/or dental treatment where non-sterile equipment was used.
  • Shared razors, toothbrushes, tweezers, manicure or pedicure equipment such as nail clippers, that may have been contaminated with infected blood.

What if I may have been exposed to hepatitis C?

If you think you may be at risk for hepatitis C, you should contact a health care professional. A simple blood test can determine if you have been exposed to the hepatitis C virus.

What happens to people with hepatitis C?

Although people who get hepatitis C may not have symptoms, or feel ill for only a short time, they may carry the hepatitis C virus in their bloodstream and be infectious for years. You may have hepatitis C and not realize it because it is difficult to know when you are in the first or "acute" phase. In the majority of cases, hepatitis C progresses to a "chronic" stage which lasts for a long time, perhaps a person's whole life. The worst effect of this is a condition called "cirrhosis" which results in severe damage to the liver. A small number of people may get liver cancer.

Can hepatitis C be treated?

For those whose hepatitis C infection is more advanced, drug treatment may be appropriate and must be administered after careful assessment by your doctor. The best current treatment strategy is the use of two antiviral drugs together, inteferon alfa-2b plus ribavirin. New drugs are being developed. Herbal treatments may not be helpful, and may be detrimental, in the treatment of hepatitis C.

Need more information?

Much of the information on this page is courtesy of The Public Health Agency of Canada. Visit their web site to learn more about hepatitis C.

The Ontario Ministry of Health HEPATITIS C - AWARENESS AND PREVENTION website provides the facts about hepatitis C: how to prevent it, what to do if you think you might be at risk, treatment and care, and useful advice if you have been diagnosed.

Last update 05 September 2007

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