Influenza Virus (H5N1) in Live Bird Markets and Food Markets, Thailand

Amonsin, Alongkorn; Choatrakol, Chuensakon; Lapkuntod, Jiradej; Tantilertcharoen, Rachod; Thanawongnuwech, Roongroje; Suradhat, Sanipa; Suwannakarn, Kamol; Theamboonlers, Apiradee; Poovorawan, Yong

doi:10.3201/eid1411.080683

Cited by 65 publications

(44 citation statements)

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“…Virus transmission studies using virus-inoculated pigeons and contact chickens have been performed, but none have succeeded in infecting chickens [14,16,21,25]. In the field surveillance studies targeting pigeons in Egypt, Germany, Poland, and Thailand, all pigeons examined were negative for the H5N1 HPAI virus [2,4,11,15].…”

mentioning

confidence: 99%

Limited Susceptibility of Pigeons Experimentally Inoculated with H5N1 Highly Pathogenic Avian Influenza Viruses

Yamamoto

Nakamura

Yamada

et al. 2012

The Journal of Veterinary Medical Science

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ABSTRACT. An experimental infection study was performed using pigeons reared for racing or meat production in Japan and clade 2.2 and 2.3.2 isolates of H5N1 highly pathogenic avian influenza virus to evaluate the possible role of pigeons in virus transmission to poultry. In experiment 1, when 20 pigeons were intranasally inoculated with high or low viral doses, no inoculated pigeon exhibited clinical signs for 14 days. Drinking water and almost all swab samples were negative for virus isolation. Virus isolation was positive in 3 oral swab samples from 2 pigeons from day 2 through 4 postinoculation, but viral titers of positive samples were extremely low. Immunohistochemical analysis for virus detection was negative in all tissue samples. Along with seroconversion in a limited number of pigeons postinoculation, these results suggest that pigeons have limited susceptibility to the virus used for experimental infection. In experiment 2, when uninoculated chickens were housed with virus-inoculated pigeons, all pigeons and contact chickens survived for 14 days without exhibiting any clinical signs. According to serological analysis, the chickens did not exhibit seroconversion after close contact with inoculated pigeons. Our data suggest that the risk posed by pigeons with respect to the transmission of the H5N1 highly pathogenic avian influenza virus to poultry would be less than that for other susceptible avian species.KEY WORDS: H5N1 subtype, highly pathogenic avian influenza, pigeons.

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confidence: 99%

Limited Susceptibility of Pigeons Experimentally Inoculated with H5N1 Highly Pathogenic Avian Influenza Viruses

Yamamoto

Nakamura

Yamada

et al. 2012

The Journal of Veterinary Medical Science

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“…Wild birds of the order Anseriformes (e.g., mallards, teals, pintails and geese) are considered main reservoirs of avian influenza viruses [9,28]. Similarly, watercocks have been identified as an HPAI H5N1 reservoir in a previous study in Thailand [2]. In this study, Thai H12N1 viruses were found in both watercocks and lesser whistling ducks.…”

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confidence: 82%

Genetic characterization of influenza A virus subtype H12N1 isolated from a watercock and lesser whistling ducks in Thailand

et al. 2012

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“…A virological survey of 10 LPMs in Hanoi showed that the HPAI H5N1 virus was circulating in healthy geese as early as 2001 (Nguyen et al 2005). Similar surveillance programmes in central Thailand during July 2006-August 2007 indicated that influenza virus subtype H5N1 was detected only during winter and that the virus was genetically related to strains circulating in Thailand during (Amonsin et al 2008. LPMs have a pivotal role during the emergence of a novel influenza virus of avian origin.…”

Section: Local Transmission Networkmentioning

confidence: 94%

“…The transportation of infected birds to remote geographical locations also spreads the contagion (Soares Magalhães et al 2010;Peiris, De Jong, and Guan 2007). AIV surveillance in Hong Kong SAR, Mainland China, Korea, Vietnam, Bangladesh, and Thailand reported significant detection rates of H5N1 virus (Lee et al 2010;Liu et al 2003;Bulaga et al 2003;Nguyen et al 2005;Amonsin et al 2008;Wang et al 2006). A virological survey of 10 LPMs in Hanoi showed that the HPAI H5N1 virus was circulating in healthy geese as early as 2001 (Nguyen et al 2005).…”

Section: Local Transmission Networkmentioning

confidence: 96%

Anthropogenic factors and societal response to challenges in the transmission of highly pathogenic avian influenza A (H5N1)

Tian

2015

Annals of GIS

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Research suggested that human infection with the novel avian influenza virus might be derived from live poultry markets. The sale of freshly slaughtered poultry, live poultry transportation, and mixed trading of different domestic animals in the live poultry markets all provide environments conducive to genome segment reassortment, gene mutation, and interspecies transmission of avian influenza virus. Production methods, human lifestyle, and the earth environment have been dramatically altered owning to rapid expansion of cities, industrialization, transportation, and accelerated population growth, in contrast to preserving traditional culture. People are exposed to the double burden of continued increasing incidence and mortality of the disease. In response to the huge challenge in the transmission of the disease, especially to prevent the spread of future avian influenza outbreaks, changing lifestyle and production habit should partly control the spread of the infections such as temporally closing live poultry markets, together with efforts to control the movement of illegal poultry products and wild birds. It is anticipated that by constantly seeking better solutions new models of living and development throughout society will gradually come into being.

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Influenza Virus (H5N1) in Live Bird Markets and Food Markets, Thailand

Abstract: A surveillance program for infl uenza A viruses (H5N1) was conducted in live bird and food markets in central Thailand during July 2006-August 2007. Twelve subtype H5N1 viruses were isolated. The subtype H5N1 viruses circulating in the markets were genetically related to those that circu-

Cited by 65 publications

References 10 publications

Limited Susceptibility of Pigeons Experimentally Inoculated with H5N1 Highly Pathogenic Avian Influenza Viruses

Limited Susceptibility of Pigeons Experimentally Inoculated with H5N1 Highly Pathogenic Avian Influenza Viruses

Genetic characterization of influenza A virus subtype H12N1 isolated from a watercock and lesser whistling ducks in Thailand

Anthropogenic factors and societal response to challenges in the transmission of highly pathogenic avian influenza A (H5N1)

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