बेयो सेप्टेमबर 1992 नि आगोल थै दोनस्लायनायजोंबो गोसारहोजादोंमोन , जेब्ला हेपाताइतिस सि नि थाखाय नुसारहोनाया लाबोजादोंमोन ।
It was also spread by blood transfusions before September 1992 when screening for hepatitis C was brought in .