Keiser Jennifer, N'Goran Eliézer K, Traoré Mahamadou, Lohourignon Kouassi L, Singer Burton H, Lengeler Christian, Tanner Marcel, Utzinger Jürg
Office of Population Research, Princeton University, New Jersey 08544, USA.
J Parasitol. 2002 Jun;88(3):461-6. doi: 10.1645/0022-3395(2002)088[0461:PWSMGA]2.0.CO;2.
Single species infections with schistosomes, geohelminths, and intestinal protozoans are common over large parts of sub-Saharan Africa, and it is expected that polyparasitism affects a considerable proportion of the population, hence posing a great toll on public health. However, few investigations have been carried out to quantify the extent of polyparasitism. Here, a detailed assessment is reported for the epidemiology of Schistosoma mansoni, geohelminths, and intestinal protozoan infections, with particular emphasis on polyparasitism among 260 community members in rural Cĵte d'Ivoire. Schistosoma mansoni, Entamoeba coli, and hookworm were the predominant species with prevalences of 71.5, 64.6, and 51.9%, respectively. Only 8 individuals displayed no infection, whereas two-thirds of the population harbored 3 or more parasites concurrently. There were a series of significant pairwise parasite co-occurrences, e.g., between S. mansoni and hookworms and between S. mansoni and E. coli. It is concluded that polyparasitism in the population studied here was very common, which is probably the case also in other areas of rural Cĵte d'Ivoire and elsewhere in sub-Saharan Africa. These findings call for integrated approaches to effectively control multiple parasitic and protozoan infections.
在撒哈拉以南非洲的大部分地区，血吸虫、土源性蠕虫和肠道原生动物的单物种感染很常见，预计多重寄生虫感染会影响相当比例的人口，从而给公共卫生带来巨大损失。然而，很少有研究对多重寄生虫感染的程度进行量化。在此，报告了对曼氏血吸虫、土源性蠕虫和肠道原生动物感染流行病学的详细评估，特别强调了科特迪瓦农村地区260名社区成员中的多重寄生虫感染情况。曼氏血吸虫、结肠内阿米巴和钩虫是主要的感染物种，感染率分别为71.5%、64.6%和51.9%。只有8人未感染，而三分之二的人口同时感染了3种或更多寄生虫。存在一系列显著的寄生虫两两共现情况，例如曼氏血吸虫与钩虫之间以及曼氏血吸虫与结肠内阿米巴之间。得出的结论是，在此研究的人群中多重寄生虫感染非常普遍，在科特迪瓦农村的其他地区以及撒哈拉以南非洲的其他地方可能也是如此。这些发现呼吁采取综合方法来有效控制多种寄生虫和原生动物感染。
