[Prevalence of HIV in Mayotte]. / Prévalence du VIH à Mayotte.

Mayotte is a little French island, located in the Indian ocean, between Madagascar and Mozambic. Officially, the population goes up to 150,000 inhabitants, but in fact, it probably comes up to about 200,000 people, because of a very numerous illegal immigration, especially coming from Anjouan, the nearest Comorian island. Up to now there are no data about HIV in Mayotte. There is only one adult medical unit (except intensive care). All patients detected as seropositive for HIV are sent for treatment in this unit. The only case of systematically proposed HIV serology is pregnancy, and this since 1994. 70% to 80% of women accept it. There are annually 6000 deliveries in Mayotte. When a seropositivity is detected, screening is systematically proposed to other members of the family. Epidemiology does not seem to worsen, even if detection is increasing: 8675 tests done in 1998, 9142 in 1999, 12,085 in 2000. All cases of seropositivity attended to at present time in our unit have been registered and studied, apart from patients who died before this study, and those who did not consult for more than two years. There were 8 HIV positive people who died since 1990 in Mayotte, most of them in 1991, 1992. There was no death in the last years, nor sanitary evacuation, except one. 50 people are registered: 20 males, 30 females. Average age is 34. 39 Comorian people, 10 metropolitans, and one from another origin. Contamination was heterosexual in 43 cases, intravenous drug user in 1 case, homosexual in 2 cases, professional in 1 case, unknown in 3 cases. There are 4 double contamination Ag Hbs/HIV, and 2 HCV/HIV. 39 subjects are at A stage, 5 B, 6 C. The beginning of the epidemic in Mayotte took place probably around 1990, among militaries and prostitutes. Now, transmission keeps going on, in most cases, heterosexual, as it occurs in the nearby Africa. Polygamy, official or officious, has a leading role. Females who were detected during pregnancy have obtained zidovudine, or have been able to pursue previous therapy. Medical care and therapy are free in Mayotte, but sometimes there are delays in supplying medicines or in returning results. Epidemic has not increased up to now; even though screening has. There are very few pediatric cases: only 4 cases were notified in Mayotte until now: one who died very soon, one who has gone to live in Reunion island, and two who are still in Mayotte: one is 12 years old, and another one 5 years old.

[Thrombosis of the ending internal carotid artery complicating giant aneurysm]. / Thrombose de la terminaison de l'artère carotide interne compliquant un anévrysme géant.

A 30-year old man suddenly developed left hemiplegia. CT scan and cerebral angiography showed complete thrombosis of a right internal carotid giant aneurysm. Anterograde propagation of the thrombus in the parent artery led to ipsilateral hemispheric infarction, an exceptional presenting symptom of such vascular malformation. The diagnostic and etiopathogenic aspects are briefly discussed.

[Zona in human immunodeficiency virus (HIV-1) infection in Bangui (Central Africa)]. / Le Zona au cours de l'infection par le virus de l'immunodéficience humaine (VIH1) à Bangui (Centrafrique).

In Bangui (Central African Republic) where HIV1 prevalence was 7.8% in 1987, 61 cases of herpes zoster have been studied: 17 "during" AIDS and 44 "isolated" cases. During AIDS, herpes zoster has no prognosis value. When it seems to be "isolated", herpes zoster is closely linked to HIV1: 42 seropositives out of 44 (predictive value of 95%) and it announces the outbreak of AIDS in the 2 years to come.