Some have disputed the HIV-positive status of a number of the trial-enrolled kids, the interpretation of these tests is biased and subject to tragic false positives, and the makers of these tests admit that their meaning is unclear. Many of these children were "infants of indeterminate HIV status born to HIV-infected mothers" or children of positive or negative status.
"HIV tests" are notoriously inaccurate in pregnant women and newborns. This is because they don't measure virus directly, only concentrations of certain proteins in the blood that might be signs of HIV. Levels of these proteins can be high in expectant mothers and babies, among others. (These include people who have recently had a flu shot, hemophiliacs who take blood products, and drug addicts. A list of more than 60 such conditions, including pregnancy, is available here.)
Nonetheless, being born to a drug-addicted mother can cause health problems, and quite a few of these children were reported to be ill when they entered foster care. Children with these problems have often responded to conventional medical care for their specific conditions -- not the drastic measures taken against AIDS.
