Hepatitis A

Hepatitis A virus causes liver disease and sometimes even liver failure. But it’s a preventable infection.(1) That’s why we deliver Hepatitis A vaccines around the world.
Indian children
Indian children

Did You Know?

159 million

Estimated number of acute hepatitis A virus (HAV) infections each year.1


Estimated number of deaths due to HAV infections each year.1


Estimated percentage of deaths from hepatitis A that occur in low- and lower-middle-income countries  (LMICs).1

About Hepatitis A

HAV is spread mostly through the oral/faecal route. Its prevalence is high in areas with poor sanitation.2
As low and middle-income countries develop, growing populations of susceptible youths become at risk of
symptomatic infections as adults.1

Protecting Against HAV

WHO recommends vaccination in national immunization programs for children starting at the age of one, depending on the local hepatitis A burden. They also recommend vaccination for other populations at risk such as travelers with plans to visit countries where hepatitis A is endemic.1
Sanofi continues to play a part in the effort to control HAV with two vaccines, one for adults and one for children.

Explore More

Why Vaccines Matter

Read stories about how vaccines help protect and improve life.


Learn more about this other preventable disease and how vaccines work to stop it.


  1. WHO position paper on hepatitis A vaccines – October 2022 https://www.who.int/publications/i/item/who-wer9740-493-512 accessed May 2023
  2. WHO Hepatitis A Fact Sheet https://www.who.int/news-room/fact-sheets/detail/hepatitis-a accessed May 2023

Page updated July 2023

MAT-GLB-2302888 v1.0 07/2023