美国佐治亚州奥萨巴岛香农白蛉（双翅目：毛蠓科）的宿主与水疱性口炎病毒的关系

Hosts of Lutzomyia shannoni (Diptera: Psychodidae) in relation to vesicular stomatitis virus on Ossabaw Island, Georgia, U.S.A.

作者信息

Comer J A, Irby W S, Kavanaugh D M

机构信息

Department of Parasitology, College of Veterinary Medicine, University of Georgia, Athens 30602.

出版信息

Med Vet Entomol. 1994 Oct;8(4):325-30. doi: 10.1111/j.1365-2915.1994.tb00096.x.

DOI:10.1111/j.1365-2915.1994.tb00096.x

PMID:7841487

Abstract

Hosts of Lutzomyia shannoni Dyar, a suspected biological vector of the New Jersey serotype of vesicular stomatitis (VSNJ) virus, were determined using an indirect enzyme-linked immunosorbent assay (ELISA) of 333 blood-fed female sandflies collected from their diurnal resting shelters on Ossabaw Island, Georgia, U.S.A. Sandflies had fed primarily on white-tailed deer (Odocoileus virginianus) (81%) and to a lesser extent on feral swine (Sus scrofa) (16%), two species of host infected annually with VSNJ. Other hosts were raccoons (Procyon lotor) and horses (Equus caballus) or donkeys (E. asinus), with only two (< 1%) mixed bloodmeals from deer/raccoon and deer/swine. A larger proportion of feedings on feral swine was detected in maritime live oak forests than in mixed hardwood forests. These findings are consistent with the hypothesis that L.shannoni is a primary vector of VSNJ virus on Ossabaw Island.

摘要

利用间接酶联免疫吸附测定法（ELISA），对从美国佐治亚州奥萨巴岛的日间栖息处采集的333只吸食了血液的雌性白蛉进行检测，以确定香农白蛉（Lutzomyia shannoni Dyar）的宿主，香农白蛉是水疱性口炎新泽西血清型（VSNJ）病毒的一种疑似生物传播媒介。白蛉主要吸食白尾鹿（Odocoileus virginianus）的血液（81%），较少程度上吸食野猪（Sus scrofa）的血液（16%），这两种宿主每年都会感染VSNJ。其他宿主是浣熊（Procyon lotor）和马（Equus caballus）或驴（E. asinus），只有两份（<1%）是鹿/浣熊和鹿/猪的混合血餐。在滨海活橡树林中检测到吸食野猪血液的比例高于混合硬木森林。这些发现与香农白蛉是奥萨巴岛VSNJ病毒主要传播媒介的假设一致。