Three babies squirmed on their mothers' laps. One wriggled free. The two others tucked their heads into the curve of their mothers' necks. They waited inside Our Lady of Apostle Hospital, the babies could serve as poster children for efforts to prevent the transmission of HIV from mother to child. All three mothers are HIV positive. All three children, doctors say, appear to be HIV negative; they hope test results will soon confirm that. Sitting next to the mothers and their babies, though, was another sight to celebrate: a father.