1 on/under pain of death idiom. 2  a pain in the arse/backside idiom. 3  a pain in the ass/butt, at a pain in the arse/backside idiom.  a pain (in the neck) idiom.
In addition to the differences in replication method, transmission risk is higher with Hep B as it can be sexually transmitted, whereas generally not with Hep C. The large majority of adult patients exposed to Hep B clear it, whereas with Hep C adults who are exposed and clear are the minority.
2. Sexually transmitted hepatitis is hepatitis B (or HBV), which afflicts more than 1.25 million individuals in the U.S. even though there is a vaccine. If left untreated, a Hep B infection will scar and damage the liver, causing cirrhosis and liver cancer.