RESUMEN
Les auteurs rapportent les resultats d'une enquete transversale a passage unique de type CAP sur le SIDA; realisee de juin a novembre 1990 sur un echantillon aleatoire d'eleves d'etablissements scolaires de Port Gentil; Koulamoutou; Lastourville et Lambarene. Les eleves ont une bonne connaissance theorique de la transmission et de modes de prevention du SIDA. Ils connaissent bien le preservatif mais l'utilisent encore trop peu; plus dans un but contraceptif ou comme prevention des MST que par crainte du SIDA pour lequel le 3/4 des lyceens ne s'estiment pas a risque
Asunto(s)
Síndrome de Inmunodeficiencia Adquirida , Estudios Transversales , ConocimientoRESUMEN
Les auteurs rapportent les resultats d'une enquete de seroprevalence VIH1 effectuee en mars 1991 par le sondage en grappes dans la population generale de Libreville; Gabon. En populations standardisees; le taux de seroprevalence est de 2;8 pour cent; il etait de 1;6 pour cent en 1986 et de 2;0 pour cent en 1989. D'un point de vue methodologique; au lieu de realiser un passage transversal unique comme lors des enquetes precedentes; les enqueteurs sont repasses pour inclure dans l'echantillon les personnes absentes au premier passage. Si les resultats sont identiques pour le VIH1; les taux de serologie treponomique sont significativement superieurs chez les personnes absentes. Ceci suggere une possibilite de biais dans la representativite des echantillons realises pour ce type d'etude par passage transversal unique
Asunto(s)
Infecciones por VIHRESUMEN
The authors report the results of national surveys conducted in 5 Central Africa states: Cameroon, Congo, Gabon, Equatorial Guinea and RCA. The method used was cluster sampling among random populations. Only adults (greater than 15 years of age) took part in the study. The prevalence rates were between 6 and 14 per thousand. They are markedly higher than the official data.
Asunto(s)
Lepra/epidemiología , Adolescente , Adulto , Camerún/epidemiología , República Centroafricana/epidemiología , Congo/epidemiología , Brotes de Enfermedades , Guinea Ecuatorial/epidemiología , Femenino , Gabón/epidemiología , Humanos , Masculino , Prevalencia , Población Rural , Población UrbanaRESUMEN
The authors report the results of 3 sample surveys carried out in Libreville, Ngounié and Haut-Ogooué Provinces to evaluate the main malarial indexes among 0 to 15 years old children in Gabon. These investigations would suggest that malaria is mesoendemic in the three areas. The systematic presumptive antimarial treatment of fever attacks is widely used in Libreville but not so frequent in rural areas.
Asunto(s)
Malaria/epidemiología , Adolescente , Animales , Antimaláricos/administración & dosificación , Antimaláricos/uso terapéutico , Niño , Preescolar , Métodos Epidemiológicos , Femenino , Gabón/epidemiología , Humanos , Lactante , Recién Nacido , Malaria/sangre , Malaria/tratamiento farmacológico , Masculino , Plasmodium falciparum , Prevalencia , Población Rural , Población UrbanaRESUMEN
In 1986 a survey to determine the distribution of HTLV-I infection was conducted in Gabon in a representative sample of adults and children. Five samples were taken in adults and 2 samples in children living in urban and rural areas. Samples were taken by the cluster sampling technique, i.e., clusters of randomly selected households. Sera were tested for IgG antibodies to HTLV-I by ELISA. ELISA-positive sera were retested by Western blot. The study comprised 1,874 adults and 684 children, all apparently healthy. In the adults the crude prevalence rates of anti-HTLV-I antibodies ranged from 5.0% in urban areas to 10.5% in the southern province. In rural areas, the age-adjusted prevalence rate (9.1%) was significantly higher than in urban areas (5.0%) (p less than 0.01). In children there was no significant difference between urban (2.4%) and rural (2.0%) prevalence rates. Prevalence increased with age but was not related to sex. This survey shows that HTLV-I infection is common in Gabon but varies considerably by region.