Hepatitis A outbreaks are erupting across the U.S., reversing a long-term decline in cases of the viral liver disease and prompting state health departments to mount aggressive vaccination campaigns.
Since outbreaks of the virus began in 2016, 30 states have reported cases totaling more than 26,000, including 268 deaths.
Hepatitis A cases have been especially concentrated in states hard hit by the opioid epidemic.