Interesting Facts About Hepatitis C

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Here are some interesting facts about hepatitis C, a disease caused by a virus that infects the liver. 

  1. An estimated 3 to 4 million people worldwide are infected with acute hepatitis C each year. In the U.S., an estimated 29,718 people were newly infected with the hepatitis C virus (HCV) in 2013.
  2. Egypt has the highest infection rate for a single country in the world, and Africa and the Eastern Mediterranean are the regions with the highest infection rates. The HCV infection rate is a term that describes how many people are getting sick with hepatitis C in a defined population. This number allows scientists to compare one group of people (such as an entire country or continent) to another.
  1. It's estimated that between 130 - 150 million people worldwide have chronic hepatitis C infection. About 3.5 million people in the U.S. are chronically infected with HCV. If you have hepatitis, you're one among many.
  2. Hepatitis C virus is more infectious than HIV, the virus that causes AIDS. In fact, HCV is 10 times more infectious than HIV when comparing direct blood-to-blood contact. This is important to those at risk for HIV exposure. In fact, studies estimate that almost one-third of HIV positive people are co-infected with HCV. However, the risk of HCV through sexual contact is low, specifically when compared to sexual transmission of HIV.
  3. Hepatitis C was first known as non-A, non-B hepatitis. In 1975, scientists began realizing that many cases of transfusion-associated hepatitis weren't caused by hepatitis A or B. In 1989, the virus was "discovered" and named hepatitis C.
  4. There is no vaccine for hepatitis C, but there are vaccines for hepatitis A and B. The hepatitis C virus is tricky for scientists to work with because it can easily mutate and has many genotypes. There is ongoing research for HCV vaccine development.
  1. To help describe how serious hepatitis C can be, you can estimate using the "twenties": About 20 percent of people infected with hepatitis C virus will completely recover, but 20 percent of the rest will develop cirrhosis. Of those who develop cirrhosis, about 20 percent will develop liver cancer. Remember, these numbers are just estimations and they can change over time. Learn about 10 complications of chronic hepatitis.
  1. If you were exposed to the hepatitis C virus, it could be over five months before you would even realize it. This is because it takes time for the virus to make enough copies of itself to damage the liver. This is called the incubation period, and it's different for each virus.
  2. Don't wait for symptoms to tell you if you have hepatitis C. The majority of people with acute hepatitis C never develop the traditional symptoms associated with viral hepatitis. However, if you would like to learn what these traditional symptoms that might be, check out the Big List of Symptoms.
  3. The single most risky behavior for exposing yourself to hepatitis C is sharing and reusing needles. Hepatitis C is only transmitted through contact with infected blood. Although this can happen in different ways, the most common way in the U.S. is by sharing needles. Although HCV can be transmitted through sex, this is rare. Learn how to protect yourself from hepatitis C


Hepatitis C FAQs for Health Professionals. Centers for Disease Control and Prevention. January 8, 2016.

Hepatitis C. Centers for Disease Control and Prevention. July 10, 2008.

Hepatitis C and HIV. New York City Department of Health and Mental Hygiene.

Hepatitis C. World Health Organization. July 2015.