These assumptions produce a reduction in the incidence of HIV infection among children born to HIV-positive women; however, the size of the reductions varies from country to country depending on the level of coverage reached by treatment in each country.
艾滋病毒抗体阳性妇女所生孩子中艾滋病毒感染率的减少，但减少的规模则依每个国家达到的治疗覆盖水平而异。