HEPATITIS B
Hepatitis B is an inflammation of the liver resulting from infection with the hepatitis B virus (HBV). This infection can be acute, characterized by limited severity and duration, or chronic, persisting over the long term.
In 2019, the WHO estimated that 296 million people worldwide were living with chronic hepatitis B (WHO - 2020).
In 2018, in Belgium, Sciensano reported 2116 new cases of hepatitis B virus contamination (Sciensano - 2020).
Hepatitis B mainly affects people with penises (56%) and the 25-44 age group (53%) (Sciensano - 2020).
Hepatitis B is transmitted :
- During unprotected/unprotected sexual intercourse;
- Via contaminated blood (drug injection ...) ;
- From mother to child.
The symptoms of hepatitis B are often similar to those of influenza:
- loss of appetite, nausea
- fever
- muscle aches
- extreme fatigue (most frequent symptom)
- jaundice (30-50% of cases in adults, rare in children)
Hepatitis B infection is often silent and asymptomatic.
If Hepatitis B infection is not treated in time, serious complications can arise, such as chronic hepatitis, cirrhosis, cancer, fulminant hepatitisboth of which can lead to death.
Co-infection with hepatitis B and HIV is common, and increases the risk of complications (cirrhosis, liver disease).
Since hepatitis B is often asymptomatic and indistinguishable from other forms of hepatitis, a blood test is the only way to confirm HBV infection.
The vast majority of healthy adults can eliminate the hepatitis B virus from their bodies naturally, without the need for medical treatment. However, in around 5-10% of adults who fail to do so, hepatitis B can progress to a chronic form, likely to cause serious complications. Fortunately, early diagnosis means that hepatitis B can be effectively treated with antivirals.
Vaccination
A free, highly effective vaccine has been available in Belgium (since 1999) at the same time as other infant vaccines. In most cases, four injections guarantee lifelong immunity. A catch-up injection is possible during adolescence.
Adults can also be vaccinated with two injections, provided they have not previously been in contact with the virus.
Find out more about the hepatitis B vaccine on the vaccination.
Preventive measures
To minimize the risk of contamination :
- uses a condom (internal or external) and a latex square (for oral sex)
- uses sterile injection equipment
- avoids contact with contaminated blood
- don't share toothbrushes, manicure equipment, razors, etc.
- avoid large-scale saliva exchanges. A kiss or a drink from someone else's glass is not a sufficient exchange of saliva.
Symptoms of hepatitis B can go unnoticed, so get tested, protect yourself and your partners.
Other STIs
Other infections
Sources
World Health Organization: WHO & World Health Organization: WHO. (2020, July 27). Hepatitis B. https://www.who.int/fr/news-room/fact-sheets/detail/hepatitis-b#:~:text=L "h%C3%A9patitis%20B%20is%20a%20inflammation%20of%20the%20liver%20caused%C3%A9e%20by,cirrhosis%20or%20cancer%20of%20the%20liver"..
Klamer, C. Wyndham-Thomas, V. Suin. Epidemiological surveillance of hepatitis B, the hepatitis B virus - 2018. Sciensano online publication, 2020. Accessed 20/03/2024.
Hepatitis A, B, C, D and E. (s. d.). sciensano.be. https://www.sciensano.be/fr/sujets-sante/hepatites-a-b-c-d-et-e