Serologic Evidence of Prevalent Avian H3 Subtype Influenza Virus Infection in Chickens

Pu, Juan; Zhang, Guozhong; Ma, Junsheng; Xia, Yingju; Liu, Qinfang; Jiang, Zhan-Lei; Wang, Zhe; Brown, Earl G.; Liu, Jinhua

doi:10.1637/8857.1

Cited by 2 publications

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“…The H3 subtypes from live bird market surveillance included H3N2, H3N3, H3N6 and H3N8. However, serological surveillance from 2006 to 2007 demonstrated about 2.83% of farmed poultry in China was positive for H3 subtype of avian influenza virus (Pu et al., 2009). In the winter of 2006, H3N2 avian influenza virus was identified in sick dogs (Li et al., 2010).…”

Section: Emergence and Re‐emergence Of Low‐pathogenic Avian Influenzamentioning

confidence: 99%

Lessons from Emergence of A/Goose/Guangdong/1996‐Like H5N1 Highly Pathogenic Avian Influenza Viruses and Recent Influenza Surveillance Efforts in Southern China

Wan

2012

Zoonoses and Public Health

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Summary Southern China is proposed as an influenza epicentre. At least two of the three pandemics in the last century, including 1957 and 1968 influenza pandemics, originated from this area. In 1996, A/goose/Guangdong/1/1996 (H5N1), the precursor of currently circulating highly pathogenic H5N1 avian influenza viruses (HPAIVs) was identified in farmed geese in southern China. These H5N1 HPAIVs have been spread across Asia, Europe and Africa and poses a continuous threat to both animal and human health. However, how and where this H5N1 HPAIV emerged are not fully understood. In the past decade, many influenza surveillance efforts have been carried out in southern China, and our understanding of the genetic diversity of non-human influenza A viruses in this area has been much better than ever. Here, the historical and first-hand experimental data on A/goose/Guangdong/1/1996(H5N1)-like HPAIVs are reviewed within the context of the findings from recent surveillance efforts on H5N1 HPAIVs and other non-human influenza A viruses. Such a retrospective recapitulation suggests that long-term and systematic surveillance programmes should continue to be implemented in southern China that the wet markets on the animal–human interface shall be the priority area and that the surveillance on the animal species bridging the interface between wildlife and domestic animal populations and the interface between the aquatics and territories shall be the strengthened.

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Section: Emergence and Re‐emergence Of Low‐pathogenic Avian Influenzamentioning

confidence: 99%

Lessons from Emergence of A/Goose/Guangdong/1996‐Like H5N1 Highly Pathogenic Avian Influenza Viruses and Recent Influenza Surveillance Efforts in Southern China

Wan

2012

Zoonoses and Public Health

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“…In this respect, we expect that H5N1 viruses would show less discrimination between the poultry species they infect. Although surveillance in farm‐to‐market systems is widespread, 16–23 to date, no predictive surveillance tools for AIV have been reported. This gap is because of a lack of intensive longitudinal sampling within a given location, including data from multiple hosts and subtypes (which together drive subtype‐specific dynamics).…”

Section: Introductionmentioning

confidence: 99%

Multiannual patterns of influenza A transmission in Chinese live bird market systems

Pepin

Wang

Webb

et al. 2012

Influenza Resp Viruses

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Please cite this paper as: Pepin et al. (2012) Multiannual patterns of influenza A transmission in Chinese live bird market systems. Influenza and Other Respiratory Viruses DOI: 10.1111/j.1750‐2659.2012.00354.x. Background Avian influenza viruses (AIV) cause huge economic losses in poultry industries and pose a substantial threat to human health. However, predicting AIV epizootics and emergence in humans is confounded by insufficient empirical data on the ecology and dynamics of AIV in poultry systems. To address this gap, we quantified incidence patterns for 13 hemagglutinin subtypes of AIV using 6 years of surveillance data that were collected from ten different species of poultry and three different types of poultry holdings (contexts) – retail, wholesale, or farms. Methods We collected 42 646 samples in Shantou, China between 2000 and 2006. We screened samples for hemagglutinin subtypes 1–13 of AIV and Avian Paramyxovirus‐type‐1 (APMV‐1) using monospecific antisera in hemagglutination inhibition tests. We analyzed the data to determine seasonality patterns, subtype–host, and subtype–subtype interactions as well as subtype bias in incidence in different contexts. Results H3, H6, H9, and APMV‐1 were the most prevalent. No significant seasonality was found when all subtypes were considered together. For most AIV subtypes and APMV‐1, there was subtype specificity for host, context, and coinfection partner. H5 showed the most generalized host usage pattern, followed by H9 and H6. Conclusion Subtype‐specific patterns because of host, context, and other subtypes suggest that risk assessments that exclude these details are likely inaccurate. Surveillance should include longitudinal sampling of multiple host species in multiple contexts. Quantitative models of control strategies must consider multiple subtypes, hosts, and source contexts to assess the effectiveness of interventions.

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Serologic Evidence of Prevalent Avian H3 Subtype Influenza Virus Infection in Chickens

Cited by 2 publications

References 0 publications

Lessons from Emergence of A/Goose/Guangdong/1996‐Like H5N1 Highly Pathogenic Avian Influenza Viruses and Recent Influenza Surveillance Efforts in Southern China

Lessons from Emergence of A/Goose/Guangdong/1996‐Like H5N1 Highly Pathogenic Avian Influenza Viruses and Recent Influenza Surveillance Efforts in Southern China

Multiannual patterns of influenza A transmission in Chinese live bird market systems

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