Disease in turkeys associated with H1N1 influenza virus following an outbreak of the disease in pigs

Andral, Bruno; Toquin, D.; Madec, F.; Aymard, M; Gourreau, Jean-Marie; Kaiser, C.; Fontaine, Melanie; Metz, Molly

doi:10.1136/vr.116.23.617

Cited by 22 publications

(8 citation statements)

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“…Infection of turkeys with swine influenza viruses seems to be common, and influenza viruses isolated from turkeys indicated that 73% of turkey influenza viruses contained genes of swine origin ( 31 ). Influenza viruses antigenically similar to the classic H1N1 swine virus were found to infect and produce diseases in different turkey herds ( 32 – 34 ). Recently, an influenza virus containing 8 genes closely related to those of A/SW/IN/9K035/99 H1N2 caused an outbreak in a turkey flock from Missouri ( 35 ).…”

Section: Discussionmentioning

confidence: 99%

Novel Swine Influenza Virus Subtype H3N1, United States

Lekcharoensuk

Lager

Vemulapalli

et al. 2006

Emerg. Infect. Dis.

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Section: Discussionmentioning

confidence: 99%

Novel Swine Influenza Virus Subtype H3N1, United States

Lekcharoensuk

Lager

Vemulapalli

et al. 2006

Emerg. Infect. Dis.

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“…In France (Brittany), H1N1 viruses were isolated from the turkey on three occasions (1983, 1985 and 1987) [2,6] and once from pigeons (1985). These viruses proved antigenically identical to the porcine HIN1 virus circulating at the time [6,15].…”

Section: Discussionmentioning

confidence: 99%

Isolation of two H1N2 influenza viruses from swine in France

Gourreau

Kaiser

Valette

et al. 1994

Archives of Virology

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Samples collected in 1987 and 1988 in Brittany from influenza-infected swine made it possible to isolate and antigenically characterize two H1N2 recombinant viruses (Sw/France/5027/87 and Sw/France/5550/88). The former virus was cloned and reinoculated to swine to allow reproduction of the disease and reisolation of a strain similar to the original one. The serodiagnostic tests carried out on both the original sera and those from the experimentally infected animals confirmed that the virus was actually type Sw/H1N2.

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“…Infection of poultry with human influenza viruses have not been reported before the emergence of pH1N1. Cases of infection of turkeys with H1N1 swine viruses have been reported in the USA (Mohan et al 1981) and Europe (Andral et al, 1985;Ludwig et al, 1994). Infection of turkeys with swine, H1N2 (Suarez et al, 2002) and H3N2 (Tang, 2005;Choi et al, 2004;Pillai et al, 2009;Kapczynski et al, 2009) viruses were also reported.…”

Section: Field Observations Including Clinical Signs and Epidemiologymentioning

confidence: 99%

Scientific Opinion on the pandemic (H1N1) 2009 influenza and its potential implications for animal health

2010

EFS2

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Analysis of the recent pandemic (H1N1) 2009 (pH1N1) virus indicates a probable origin in pigs. However, it was not reported in pigs prior to its detection in humans. Several cases of pH1N1 virus infections in animals have been reported, mainly in pigs but also in other animals including turkeys. Occasionally, pigs have been infected following exposure to pH1N1 infected humans. In pigs, a subclinical course was common and when clinical signs were seen (coughing, fever) they were generally mild. Presently, the clinical impact of pH1N1virus on the EU pig population is considered minimal. In poultry, outbreaks of pH1N1 have been reported only in turkey breeder flocks. So far, there is no evidence that pH1N1 virus is able to spread horizontally among turkeys. Awareness should be raised about the risk of infecting breeder turkeys with pH1N1 virus during artificial insemination. To date, no infection of wild birds with pH1N1 virus has been reported. From an animal health perspective, no specific disease control measures are considered necessary. Vaccines based on the pH1N1 virus appear to induce protection in swine similar to that induced by the existing swine influenza virus (SIV) vaccines. Such vaccines efficiently prevent disease by reducing virus replication in the lungs. However, voluntary vaccination of swine with these vaccines has not halted the circulation of SIV in swine. There is no urgency for vaccination of pigs against pH1N1 virus. Currently, no vaccines against H1 viruses for poultry are available but at present, there is no need to vaccinate poultry against pH1N1 virus. Monitoring of circulating influenza viruses in swine and poultry populations should be instigated to monitor the evolution of the pH1N1 virus including changes in virulence.

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Disease in turkeys associated with H1N1 influenza virus following an outbreak of the disease in pigs

Cited by 22 publications

References 0 publications

Novel Swine Influenza Virus Subtype H3N1, United States

Novel Swine Influenza Virus Subtype H3N1, United States

Isolation of two H1N2 influenza viruses from swine in France

Scientific Opinion on the pandemic (H1N1) 2009 influenza and its potential implications for animal health

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