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Serological and virologic surveillance of swine influenza in China from 2000 to 2003
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lia, Haiyan Yua, Kangzheng Xina, Xiaoguang Yanga, Huanliang Lia, Yanbing Qina, Yunan Bib, Yingzuo Tonga, Guangzhi Chena, Hualan |
| Copyright Year | 2004 |
| Abstract | Serological and virologic surveillance of swine influenza in 19 provinces and cities in China was conducted from 2000 to 2003. The serological studies were carried out by hemagglutination inhibition (HI) assay using H1, H3, H5 andH9 subtype influenza viruses as antigens. The positive rates of H1 and H3 subtype influenza were 10.1% and 41.1%, respectively, from a total of 4212 samples. From the samples collected in four different provinces in 2002, 1.9–6.8% of H9 subtype influenza positive were detected, and 3.9% and 9.5% of H5 subtype influenza positive were detected from two separate farms in 2003. A total of 1985 samples, including swabs from nasal tracts, lungs, and tracheas were collected from different farms for virus detection, and 116 strains of swine influenza viruses were isolated. Forty-five strains were identified as the H3N2 subtype, while 25 H1N1 and 2 H1N2 subtype strains were identified. Moreover, the isolation of eight strains of H9N2 and two strains of H5N1 viruses had also been confirmed. In conclusion, H1 and H3 subtype swine influenza infections widely existed in the pig flocks in China, and the emergence of H5 and H9 subtype influenza viruses in the pig farms in some areas are potential disasters for the pig industry and may also turn out to be a threat to public health. D 2004 Published by Elsevier B.V. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.prairieswine.com/pdf/3304.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Emergence Feedback Flocking (behavior) Hemagglutination Inhibition Tests Infection Influenza A Virus, H3N2 Subtype Influenza due to Influenza A virus subtype H1N1 Influenza in Birds Influenza virus vaccine Lung Orthomyxoviridae PRISM (surveillance program) Scientific Publication Sus scrofa Swab Threat (computer) Trachea |
| Content Type | Text |
| Resource Type | Article |
