Influenza D Virus Infection in Feral Swine Populations, United States

被引:48
|
作者
Ferguson, Lucas [1 ]
Luo, Kaijian [2 ,3 ]
Olivier, Alicia K. [2 ]
Cunningham, Fred L. [4 ]
Blackmon, Sherry [2 ]
Hanson-Dorr, Katie [4 ]
Sun, Hailiang [2 ,3 ]
Baroch, John [5 ]
Lutman, Mark W. [5 ]
Quade, Bianca [2 ]
Epperson, William [2 ]
Webby, Richard [6 ]
DeLiberto, Thomas J. [5 ]
Wan, Xiu-Feng [2 ]
机构
[1] Mississippi State Univ, Biochem & Mol Biol, Starkville, MS USA
[2] Mississippi State Univ, Starkville, MS USA
[3] South China Agr Univ, Guangzhou, Guangdong, Peoples R China
[4] Dept Agr, Starkville, MS USA
[5] USDA, Ft Collins, CO USA
[6] St Jude Childrens Res Hosp, 332 N Lauderdale St, Memphis, TN 38105 USA
基金
美国国家卫生研究院;
关键词
SEROLOGICAL EVIDENCE; DISEASE TRANSMISSION; BEEF-CATTLE; SOFT PALATE; IDENTIFICATION; PREVALENCE; LINEAGES; EXPOSURE; CONTACT; BOVINE;
D O I
10.3201/eid2406.172102
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Influenza D virus (IDV) has been identified in domestic cattle, swine, camelid, and small ruminant populations across North America, Europe, Asia, South America, and Africa. Our study investigated seroprevalence and transmissibility of IDV in feral swine. During 2012-2013, we evaluated feral swine populations in 4 US states; of 256 swine tested, 57 (19.1%) were IDV seropositive. Among 96 archived influenza A virus-seropositive feral swine samples collected from 16 US states during 2010-2013, 41 (42.7%) were IDV seropositive. Infection studies demonstrated that IDV-inoculated feral swine shed virus 3-5 days postinoculation and seroconverted at 21 days postinoculation; 50% of in-contact naive feral swine shed virus, seroconverted, or both. Immunohistochemical staining showed viral antigen within epithelial cells of the respiratory tract, including trachea, soft palate, and lungs. Our findings suggest that feral swine might serve an important role in the ecology of IDV.
引用
收藏
页码:1020 / 1028
页数:9
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