Christensen H A, de Vasquez A M
Am J Trop Med Hyg. 1981 Jan;30(1):278-83. doi: 10.4269/ajtmh.1981.30.278.
Rhodnius pallescens, reported to be the principal vector of Chagas' disease in central Panama, has been shown to feed on opossums, anteaters, sloths, rodents, birds and, rarely, lizards in sylvatic habitats in this country; however, the extent of its anthropophagic affinities in rural areas has never been determined. The host selections of 1,340 R. pallescens from domestic and peridomestic habitats of three Panamanian villages were determined by microcapillary precipitin tests. Slightly more than half of the triatomines collected in houses and nearby palm trees and bird nests had fed on humans. Opossums, which are important reservoirs of Trypanosoma cruzi in Panama, were the second most frequently selected host. The importance for the transmission of Chagas' disease to humans of the close relationship between the principal vector and reservoir in sylvatic and peridomestic environments and the anthropophagy of the former is discussed. Pigeons and chickens were the dominant bloodmeal sources of triatomines collected in their respective shelters. The roof rat, Rattus rattus, was the third most common mammalian host, and may represent an ancillary reservoir in the transmission of Chagas' diseases in rural areas of Panama.
苍白猎蝽据报道是巴拿马中部恰加斯病的主要传播媒介，已证实在该国的野生栖息地中，它以负鼠、食蚁兽、树懒、啮齿动物、鸟类为食，偶尔也会捕食蜥蜴；然而，其在农村地区对人类的嗜食程度从未得到确定。通过微量毛细管沉淀试验确定了来自巴拿马三个村庄家庭及周边栖息地的1340只苍白猎蝽的宿主选择情况。在房屋、附近棕榈树和鸟巢中采集到的猎蝽，略多于一半曾吸食过人类血液。负鼠是巴拿马克氏锥虫的重要宿主，是第二常被选择的宿主。本文讨论了在野生和家庭周边环境中主要传播媒介与宿主之间的密切关系以及前者的嗜人性对恰加斯病传播给人类的重要性。鸽子和鸡分别是在其各自栖息处采集到的猎蝽的主要血餐来源。屋顶鼠是第三常见的哺乳动物宿主，可能是巴拿马农村地区恰加斯病传播中的辅助宿主。
