Service M W
Bull World Health Organ. 1974;50(6):487-94.
The yellow fever epidemic in Nigeria in 1969-70 emphasized the lack of data concerning the possible importance of Aedes aegypti and other Stegomyia mosquitos as vectors. An entomological survey was therefore undertaken in September 1973 in 6 areas in the north-west of Nigeria to determine the prevalence of Stegomyia populations in the villages. An examination of over 6 700 water pots showed that 11-53% contained A. aegypti larvae, and in some areas larvae of A. vittatus were found in up to 18% of pots. In villages in the relatively dry Sudan savanna neither leaf axils nor tree-holes were important Stegomyia larval habitats, but in the more southern Kontagora area of the wetter northern Guinea savanna, these habitats were probably important breeding sites. In the early evening the most abundant man-biting mosquito in the villages was A. aegypti. A. vittatus was also caught at bait in some villages. It was concluded that the only potential yellow fever vectors in the area were A. aegypti and A. vittatus. There were large populations of A. aegypti, closely associated with man, in all the areas surveyed, but they should not present a risk of yellow fever transmission unless the disease were to be introduced into the area by man, or unless virus reservoirs, such as monkeys, were also present. Although monkeys were common in the Kontagora area they were rare in the Sudan savanna.
1969 - 1970年尼日利亚的黄热病疫情凸显了关于埃及伊蚊及其他白纹伊蚊作为传播媒介可能具有的重要性方面的数据匮乏。因此，于1973年9月在尼日利亚西北部的6个地区开展了一项昆虫学调查，以确定村庄中白纹伊蚊种群的流行情况。对6700多个水缸进行检查发现，11% - 53%的水缸中含有埃及伊蚊幼虫，在一些地区，高达18%的水缸中发现了条斑伊蚊幼虫。在相对干燥的苏丹稀树草原的村庄，叶腋和树洞都不是重要的白纹伊蚊幼虫栖息地，但在更南部、气候更湿润的几内亚稀树草原的孔塔戈拉地区，这些栖息地可能是重要的繁殖场所。傍晚时分，村庄中叮咬人的最常见蚊子是埃及伊蚊。在一些村庄，条斑伊蚊也能通过诱饵诱捕到。得出的结论是，该地区仅有的潜在黄热病传播媒介是埃及伊蚊和条斑伊蚊。在所有调查地区都有大量与人类密切相关的埃及伊蚊种群，但除非黄热病由人类引入该地区，或者存在病毒宿主（如猴子），否则它们不应构成黄热病传播风险。尽管猴子在孔塔戈拉地区很常见，但在苏丹稀树草原却很稀少。
