| biological markers associated with prolonged survival in african children maternally infected by the human immunodeficiency virus type 1. | sixteen children over the age of 5 years (group 1) have been identified out of 537 children infected by human immunodeficiency virus and born to hiv-infected mothers, in kigali, rwanda. they were followed up for 2 years and compared with 16 younger aids patients (group 2) and with 16 age- and gender-matched hiv-1 seronegative children (group 3). fourteen group 1 subjects had anti-hiv-1 igm which persisted during the entire study period, in 11 cases directed to hiv-1 envelope proteins. in vitro, ... | 1992 | 1599753 |