
The Asahi Shimbun, August 19, 2006
It is estimated that 3.5 million people nationwide carry a deadly time bomb, which if left untended is certain to go off in many cases. The government, however, refuses to take effective action to stem this crisis. This time bomb is hepatitis.
For hepatitis B, the state has agreed to pay compensation in accordance with a Supreme Court ruling that recognized the cause of the disease as stemming from vaccinations. .....Both the hepatitis B and C types are spread by viral blood infections. In most cases the contamination occurs through blood transfusions, injections or other medical treatment, qualifying it as a so-called iatrogenic disease.....more...

Ok, blood transfusions I understand,
but how the flying f'ck can
vaccinations cause hepatitis B?
Do Japanese doctors reuse needles?