HIV-RNA levels (median of Log) in plasma and in various milk fractions of two groups of pregnant women: group A receiving HAART; group B do not receiving any ARV drugs ( Dream) GROUP A (n=40) GROUP B (n=40) Delivery Log HIV RNA in plasma, median2.24.8p<0,005 Log HIV RNA in whole milk, median2.33.4p<0,005 Log HIV RNA in lipid fractions, median1.73.1p<0,005 Log HIV RNA in milk overflow, median2.53.4p<0,005 Day 7 Log HIV RNA in plasma, median2.34.9p<0,005 Log HIV RNA in whole milk, median1.93.6p<0,005 Log RNA HIV in lipid fractions, median1.73.5p<0,005 Log HIV RNA in milk overflow, median1.73.9p<0,005