Isolation of the Pandemic (H1N1) 2009 virus and its reassortant with an H3N2 swine influenza virus from healthy weaning pigs in Thailand in 2011

Hiromoto, Yasuaki; Parchariyanon, Sujira; Ketusing, Naree; Netrabukkana, Punnaporn; Hayashi, Tsuyoshi; Kobayashi, Tomoko; Takemae, Nobuhiro; Saito, Takehiko

doi:10.1016/j.virusres.2012.07.025

Cited by 46 publications

(41 citation statements)

References 39 publications

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“…The M gene of the 2009/H1N1 virus plays an important role in its transmissibility [29,30], and both the PA and NS genes of 2009/H1N1 virus can make an H5N1 influenza virus highly transmissible by respiratory droplet in guinea pigs [26]. H3N2, H1N1, and H1N2 influenza viruses bearing different genes from the 2009/H1N1 virus have been detected in pigs in many countries since 2009 [31][32][33][34][35][36][37][38][39][40], and it would be of value to fully evaluate the biologic properties of these viruses.…”

Section: Discussionmentioning

confidence: 99%

Novel triple reassortant H1N2 influenza viruses bearing six internal genes of the pandemic 2009/H1N1 influenza virus were detected in pigs in China

Qiao¹,

Liu²,

Yang³

et al. 2014

Journal of Clinical Virology

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Section: Discussionmentioning

confidence: 99%

Novel triple reassortant H1N2 influenza viruses bearing six internal genes of the pandemic 2009/H1N1 influenza virus were detected in pigs in China

Qiao¹,

Liu²,

Yang³

et al. 2014

Journal of Clinical Virology

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“…In many parts of the world, there is evidence of continued reassortment between pH1N1 and classical swine H3N2 and H1N1 viruses. Several of these reassortants have crossed into humans, 28,29,32,33,34,35,36 the most recent being the novel reassortant H3N2 viruses currently infecting humans in the United States. 28,29,37,38,39 Similarly, swine in Argentina have been found to be infected with pH1N1 and seasonal human reassortants.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and characterization of influenza viruses in diverse species in Los Llanos, Colombia

Karlsson

Čiuoderis

Freiden

et al. 2013

Emerging Microbes & Infections

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While much is known about the prevalence of influenza viruses in North America and Eurasia, their prevalence in birds and mammals in South America is largely unknown. To fill this knowledge gap and provide a baseline for future ecology and epidemiology studies, we conducted 2 years of influenza surveillance in the eastern plains (Los Llanos) region of Colombia. Real-time reverse transcriptase polymerase chain reaction (RT-PCR) identified influenza viruses in wild birds, domestic poultry, swine and horses. Prevalence ranged from 2.6% to 13.4% across species. Swine showed the highest prevalence and were infected primarily with 2009 pandemic H1N1 (pH1N1) viruses genetically related to those in humans. In addition, we isolated H5N2 viruses from two resident species of whistling ducks (genus Dendrocygna) that differed completely from previous South American isolates, instead genetically resembling North American wild bird viruses. Both strains caused low pathogenicity in chickens and mammals. The prevalence and subtype diversity of influenza viruses isolated from diverse species within a small area of Colombia highlights the need for enhanced surveillance throughout South America, including monitoring of the potential transmissibility of low-pathogenic H5N2 viruses from wild birds to domestic poultry and the emergence of reassortant viruses in domestic swine.

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“…Moreover, in some countries the reassorted pdm H1N1 2009 virus was isolated from pigs (11,20,25,33,35). In Germany, pig herds were investigated in greater details since 2009.…”

Section: Discussionmentioning

confidence: 99%

Emergence of the pandemic H1N1 2009 influenza A virus in swine herds in Poland

Markowska-Daniel

Urbaniak

Porowski³

et al. 2013

Bulletin of the Veterinary Institute in Pulawy

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The outbreaks of pandemic H1N1 influenza A virus (pdm-like H1N1 2009), detected for the first time in farrow-to-finish farms in Poland, were described. The nasal swabs and lung tissue collected from diseased/dead animals were tested using molecular techniques (RRT-PCR, MRT-PCR, RT-PCR, SSG-PCR, sequencing) and virus isolation. The amplification of the genetic material extracted from the tested samples confirmed the presence of the M1 gene sequence of type A influenza virus. Using MRT-PCRs no products characteristic for HA and NA of any swine influenza virus subtypes were obtained. Using SSG-PCR, products specific for pandemic HA and NA gene fragments were detected. Six new pdm-like H1N1 2009 strains were isolated and characterised. Phylogenetic analysis of the HA and NA genes revealed that they belong to one lineage with the pandemic strain A/California/04/2009 and other human strains, including human strains isolated in Poland in 2011.

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Isolation of the Pandemic (H1N1) 2009 virus and its reassortant with an H3N2 swine influenza virus from healthy weaning pigs in Thailand in 2011

Cited by 46 publications

References 39 publications

Novel triple reassortant H1N2 influenza viruses bearing six internal genes of the pandemic 2009/H1N1 influenza virus were detected in pigs in China

Novel triple reassortant H1N2 influenza viruses bearing six internal genes of the pandemic 2009/H1N1 influenza virus were detected in pigs in China

Prevalence and characterization of influenza viruses in diverse species in Los Llanos, Colombia

Emergence of the pandemic H1N1 2009 influenza A virus in swine herds in Poland

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