LeeCAWebsterAGriffithsPDKernoffPBA. Symptomless HIV infection after more than ten years. Lancet1989; i: 425–6
2.
BurgerHBelmanALGrimsonR. Long HIV-1 incubation periods and dynamics of transmission within a family. Lancet1990; ii: 134–6
3.
KellyDAHallettRJSaeedAMorganGLevinskyRJStrobelS.Prolonged survival and late presentation of vertically transmitted HIV infection in childhood. Lancet1987; i: 806–7
4.
HolmbergSCHorsburghCRJrWardJWJaffeHW. Biologic factors in the sexual transmission of human immunodeficiency virus. J Infect Dis1989; 160: 116–25
5.
Van der GraafMDieperslootR.Sexual transmission of HIV-routes, efficiency, cofactors and prevention. A survey of the literature. Infection1989; 17: 210–15
6.
RowenDCarneCA. Heterosexual transmission of human immunodeficiency virus. Int J STD AIDS1990; 1: 239–44
7.
ValleS-LSarnaS.Transmission of HIV in a cluster of young heterosexuals in a low prevalence area. AIDS1990; 4: 1157–8
8.
The European Collaborative Study. Mother-to-child transmission of HIV infection. Lancet1988; ii: 1040–3
9.
HiraSKKamangaJBhatGJMwaleCTemboGLuoNPerinePL. Perinatal transmission of HIV-1 in Zambia. BMJ1989; 299: 1250–2
10.
ZieglerJBCooperDAJohnsonRDGoldJ.Postnatal transmission of AIDS-associated retrovirus from mother to infant. Lancet1985; i: 986
11.
ColebundersRKapitaBNekweiWBahweYLebugheIOxtobyMRyderR.Breastfeeding and transmission of HIV. Lancet1988; ii: 1487
12.
HiraSKMangrolaUGMwaleCChintuCTemboGBradyWEPerinePL. Apparent vertical transmission of human immunodeficiency virus type 1 by breast-feeding in Zambia. J Pediatr1990; 117: 421–4
13.
Al-NozhaMRamiaSAl-FrayhAArifM.Female to male: An inefficient mode of transmission of human immunodeficiency virus (HIV). J Acquir Defic Syndr1990; 3: 193
14.
ThomasPA, Early predictors and rate of perinatal HIV disease. In: V International Conference on AIDS, Montreal 1989; abstract Th.A.0.7, p 73
15.
S-LValle. Febrile pharyngitis as the primary sign of HIV infection in a cluster of cases linked by sexual contact. Scand J Infect Dis1987; 19: 13–17
