Hepatitis B shot for newborns has nearly eliminated childhood infections with this virus in the US Before the United States began vaccinating all infants at birth with the hepatitis B vaccine in 1991, around 18,000 children every year contracted the virus before their 10th birthday—about half of them at birth. About 90% of that subset developed a chronic infection.
https://medicalxpress.com/news..../2025-09-hepatitis-s