Table 16. Number and percentage of infants infected with HIV through mother-to-child transmission, as of October 2003, by year of infant's birth, 1999–2001—24 areas conducting Enhanced Perinatal Surveillance
Note. Because of rounding, column percentages may not total 100.
a
Includes children whose HIV diagnosis was made according to the January 2000 HIV case definition or whose AIDS diagnosis was made according to the August 1987 pediatric AIDS case definition.
b
Refers to the classification of children born to an HIV-positive mother but whose laboratory test results were insufficient for a classification of infected or not infected with HIV (reference 3: CDC, MMWR 1999;48[No. RR-13]:1–31).
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