For detailed info on Hepatitis, check out WebMD: hepatitis C Topic Overview.
Hepatitis C can be transmitted through contact with blood (sharing needles), needle stick injuries for health care workers, sexual contact or from mother to child at birth. In the past, it was also spread through transfusions with infected blood, but in the western world, blood supplies are tested vigourously these days.
Hepatitis can be diagnosed through a blood test at your docs. If you fear you might have it, get tested.
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