What percentage of Hepatitis B infections are caused by sharing needles for drug use?

The answer indicating that very few infections of Hepatitis B are caused by sharing needles for drug use is grounded in the understanding of how Hepatitis B is transmitted. While sharing needles does indeed pose a risk for the transmission of Hepatitis B, the infection is predominantly spread through other means, such as sexual contact with an infected person and from mother to child during childbirth.

Statistical data suggests that a significant portion of Hepatitis B infections occurs through sexual transmission rather than through sharing of drug-use paraphernalia. While injection drug use remains a concern, the prevalence of Hepatitis B strains from this source is actually lower compared to other transmission routes. This context helps to clarify why the notion of very few infections from needle sharing is an accurate portrayal of the statistics regarding Hepatitis B transmission.