Table 2

 Probability of mother to child transmission of HIV

Duration of breastfeeding in the general populationTreatmentMixed breastfeeding (%)Replacement feeding (%)Exclusive breastfeeding (%)
NVP, single dose Nevirapine; NVP + AZT, single dose Nevirapine plus short course AZT; HAART, triple therapy to treat the mother’s infection.
Exclusive breastfeeding refers to exclusive breastfeeding for six months followed by rapid weaning.
<6 monthsNone305,6205,730
NVP1611168
NVP + AZT102910
HAART222
7–17 monthsNone322030
NVP2411168
NVP + AZT172910
HAART422
>18 monthsNone3552030
NVP2811168
NVP + AZT202910
HAART422