Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand
Since the outbreaks of highly pathogenic avian influenza (HPAI) subtype H5N1 virus, wild birds have been suspected of transmitting this virus to poultry. On January 23, 2004, the Ministry of Public Health in Thailand informed the World Health Organization of an avian influenza A (H5N1) outbreak. To...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Centers for Disease Control and Prevention
2011-06-01
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| Series: | Emerging Infectious Diseases |
| Subjects: | |
| Online Access: | https://wwwnc.cdc.gov/eid/article/17/6/10-0880_article |
| _version_ | 1811279237753077760 |
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| author | Juthatip Keawcharoen Jan van den Broek Annemarie Bouma Thanawat Tiensin Albert D.M.E Osterhaus Hans Heesterbeek |
| author_facet | Juthatip Keawcharoen Jan van den Broek Annemarie Bouma Thanawat Tiensin Albert D.M.E Osterhaus Hans Heesterbeek |
| author_sort | Juthatip Keawcharoen |
| collection | DOAJ |
| description | Since the outbreaks of highly pathogenic avian influenza (HPAI) subtype H5N1 virus, wild birds have been suspected of transmitting this virus to poultry. On January 23, 2004, the Ministry of Public Health in Thailand informed the World Health Organization of an avian influenza A (H5N1) outbreak. To determine the epidemiology of this viral infection and its relation to poultry outbreaks in Thailand from 2004 through 2007, we investigated how wild birds play a role in transmission. A total of 24,712 serum samples were collected from migratory and resident wild birds. Reverse transcription PCR showed a 0.7% HPAI (H5N1) prevalence. The highest prevalence was observed during January–February 2004 and March–June 2004, predominantly in central Thailand, which harbors most of the country’s poultry flocks. Analysis of the relationship between poultry and wild bird outbreaks was done by using a nonhomogeneous birth and death statistical model. Transmission efficiency among poultry flocks was 1.7× higher in regions with infected wild birds in the given or preceding month. The joint presence of wild birds and poultry is associated with increased spread among poultry flocks. |
| first_indexed | 2024-04-13T00:51:11Z |
| format | Article |
| id | doaj.art-6f7a95254c60433bb0f37012a69047ba |
| institution | Directory Open Access Journal |
| issn | 1080-6040 1080-6059 |
| language | English |
| last_indexed | 2024-04-13T00:51:11Z |
| publishDate | 2011-06-01 |
| publisher | Centers for Disease Control and Prevention |
| record_format | Article |
| series | Emerging Infectious Diseases |
| spelling | doaj.art-6f7a95254c60433bb0f37012a69047ba2022-12-22T03:09:53ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592011-06-011761016102210.3201/eid1706.100880Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, ThailandJuthatip KeawcharoenJan van den BroekAnnemarie BoumaThanawat TiensinAlbert D.M.E OsterhausHans HeesterbeekSince the outbreaks of highly pathogenic avian influenza (HPAI) subtype H5N1 virus, wild birds have been suspected of transmitting this virus to poultry. On January 23, 2004, the Ministry of Public Health in Thailand informed the World Health Organization of an avian influenza A (H5N1) outbreak. To determine the epidemiology of this viral infection and its relation to poultry outbreaks in Thailand from 2004 through 2007, we investigated how wild birds play a role in transmission. A total of 24,712 serum samples were collected from migratory and resident wild birds. Reverse transcription PCR showed a 0.7% HPAI (H5N1) prevalence. The highest prevalence was observed during January–February 2004 and March–June 2004, predominantly in central Thailand, which harbors most of the country’s poultry flocks. Analysis of the relationship between poultry and wild bird outbreaks was done by using a nonhomogeneous birth and death statistical model. Transmission efficiency among poultry flocks was 1.7× higher in regions with infected wild birds in the given or preceding month. The joint presence of wild birds and poultry is associated with increased spread among poultry flocks.https://wwwnc.cdc.gov/eid/article/17/6/10-0880_articlewild birdspoultryinfluenza A virussubtype H5N1a nonhomogeneous birth and death statistical modelreproductive power |
| spellingShingle | Juthatip Keawcharoen Jan van den Broek Annemarie Bouma Thanawat Tiensin Albert D.M.E Osterhaus Hans Heesterbeek Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand Emerging Infectious Diseases wild birds poultry influenza A virus subtype H5N1 a nonhomogeneous birth and death statistical model reproductive power |
| title | Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand |
| title_full | Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand |
| title_fullStr | Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand |
| title_full_unstemmed | Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand |
| title_short | Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand |
| title_sort | wild birds and increased transmission of highly pathogenic avian influenza h5n1 among poultry thailand |
| topic | wild birds poultry influenza A virus subtype H5N1 a nonhomogeneous birth and death statistical model reproductive power |
| url | https://wwwnc.cdc.gov/eid/article/17/6/10-0880_article |
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