There were no secondarycases in the families in 2005, and 2 secondarycases in the first half of 2006.
2005年没有家庭内二代病例，2006年上半年有2例家庭内二代病例。
2
Most of these secondarycases of leukaemia are acute non-lymphocytic leukaemias or myelodysplastic syndrome, which is a preleukaemic condition.
多数继发性白血病病例都属于急性非淋巴性白血病或骨髓发育不良性综合征，它是一种白血病前期状态。
3
There was less bullying in secondary schools, with about one in twenty-five suffering persistent bullying, but these cases may be particularly recalcitrant.