DUCK PLAGUE - CARRIER STATE IN WATERFOWL
DUCK PLAGUE - CARRIER STATE IN WATERFOWL
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DOI：
10.2307/1589610
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发表时间：
1979-01-01
期刊：
影响因子：
1.4
通讯作者：
YUILL, TM
中科院分区：
文献类型：
--
作者：
BURGESS, EC;OSSA, J;YUILL, TM
健康水禽是鸭瘟病毒的携带者。1973年，在威斯康星州科洛马（Coloma）自然暴发DP的黑鸭（Anas rubripes）和加拿大鹅（Branta canadensis）在感染后4年采集的泄殖腔拭子中检出DP病毒。实验感染以前未暴露的野鸭（A。用DP病毒CO-WI的Coloma株感染platyrhynochos），在感染后4年内产生泄殖腔病毒脱落。从美国南达科他州安第斯山脉分离到的第二株DP病毒LA-SD，是从麻鸭泄殖腔拭子中分离到的。acuta）、牛道鸭（A. strepera）、野鸭（Aix sponsa）和加拿大鹅（Canada鹅）感染。每个供试种属内个体间DP病毒阳性拭子的频率各不相同。可检测的DP病毒脱落量约为100个病毒/泄殖腔拭子噬斑形成单位。除加拿大鹅和鹅鸭外，所有试验物种均存在口腔糜烂。舌下腺导管开口处发生糜烂。从糜烂中分离到DP病毒。所有有病变的鸭子都能排出DP病毒，尽管不一定是在病变发生时。
Healthy waterfowl were carriers of duck plague (DP) virus. Black ducks (Anas rubripes) and Canada geese (Branta canadensis) surviving a natural outbreak of DP at Coloma, Wisconsin [USA], in 1973 yielded DP virus in cloacal swabs taken 4 yr post-infection. Experimental infection of previously unexposed mallard ducks (A. platyrhynochos) with the Coloma strain of DP virus CO-WI produced cloacal virus shedding up to 4 yr after infection. A 2nd DP virus strain, LA-SD from the Lake Andes, South Dakota [USA] epornitic, was detected from cloacal swabs of pintail ducks (A. acuta), gadwall ducks (A. strepera), wood ducks (Aix sponsa) and Canada geese infected experimentally 1 yr before. Frequency of swabs positive for DP virus varied between individuals within each tested species. Amount of detectable DP virus shed was about 100 plaque-forming units of virus/cloacal swab. Oral erosions were present in all species tested except Canada geese and gadwall ducks. Erosions occurred at the openings of the sublingual salivary gland ducts. DP virus was isolated from erosions. All ducks with lesions shed DP virus, although not necessarily at the time they had the lesion.