Which hepatitis virus has seen the highest increase in new cases over recent years?

The hepatitis virus that has seen the highest increase in new cases over recent years is hepatitis C virus (HCV). This trend can be attributed to several factors, including the increase in opioid use and injection drug use, which have led to a rise in transmission rates. Additionally, there has been improved awareness and testing for HCV, which may result in more reported cases as previously undiagnosed individuals are identified.

Moreover, the introduction and availability of direct-acting antiviral (DAA) therapies has also contributed to an increased focus on HCV, with public health initiatives aimed at testing and treating infected individuals. As a result, while vaccination and prevention strategies have been effective for other hepatitis viruses, the dynamics surrounding HCV have led to a notable increase in its reported cases, emphasizing the need for continued public health efforts in this area.