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The role of intrauterine transfusion for fetal hydrops arising from maternal paravirus B19 infection is unclear. 66 cases of fetal hydrops arising from B19 infection were reported in England and Wales between June, 1992, and September, 1994. In 29 cases the fetus was dead at the time of the first abnormal ultrasound or a therapeutic abortion as performed; 12 of the 38 alive at the first abnormal scan...