将播散性卡介菌病新增病例的数量作为分子，这一数据从多个医学中心从2004年至2006年有计划地监测确定感染艾滋病毒的婴儿获得的数据中获取。
The numerator, or number of new cases of disseminated BCG disease, was derived from multicentre surveillance data collected prospectively on infants with a confirmed HIV infection during 2004–2006.
多个医学中心的监测数据表明艾滋病毒感染婴儿罹患播散性卡介菌病的风险明显高于之前的估计，尽管目前的数据可能还是低估的。
Multicentre surveillance data showed that the risk of disseminated BCG disease in HIV-infected infants is considerably higher than previously estimated, although likely to be under-estimated.
新发现是基于美国各地的医院向全国医疗安全网提交的数据，这是疾病预防与控制中心的感染监测系统。
The new findings are based on data submitted by hospitals across the U. S. to the National Healthcare Safety Network, which is the CDC's infection monitoring system.
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