New Outbreak of Swine Influenza in the Czech Republic

Buchta, J.; Lány, P.; Žižlavský, M.; Thurnvaldová, J.; Pospíšil, Zdeněk

doi:10.2754/avb200170030321

Cited by 2 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…94) 22 . Clearly, avian‐like H1N1 SIV are circulating in both Poland and the Czech Republic and this is supported by serological and virological investigations 23–27 . In contrast, H3N2 or H1N2 SIV, have never been isolated in Poland or in the Czech Republic to date and our present data support the belief that they are absent or epidemiologically unimportant.…”

Section: Discussionsupporting

confidence: 87%

“…22 Clearly, avian-like H1N1 SIV are circulating in both Poland and the Czech Republic and this is supported by serological and virological investigations. [23][24][25][26][27] In contrast, H3N2 or H1N2 SIV, have never been isolated in Poland or in the Czech Republic to date and our present data support the belief that they are absent or epidemiologically unimportant. The four H3N2-positive sera in the Czech Republic are believed to be false positives and this may also apply to the 17 H1N2-positive sera, of which 13 were also positive to H1N1.…”

Section: Discussionsupporting

confidence: 80%

See 1 more Smart Citation

Seroprevalence of H1N1, H3N2 and H1N2 influenza viruses in pigs in seven European countries in 2002–2003

Reeth

Brown²,

Dürrwald³

et al. 2008

Influenza Resp Viruses

View full text Add to dashboard Cite

Objectives Avian‐like H1N1 and human‐like H3N2 swine influenza viruses (SIV) have been considered widespread among pigs in Western Europe since the 1980s, and a novel H1N2 reassortant with a human‐like H1 emerged in the mid 1990s. This study, which was part of the EC‐funded ‘European Surveillance Network for Influenza in Pigs 1’, aimed to determine the seroprevalence of the H1N2 virus in different European regions and to compare the relative prevalences of each SIV between regions. Design Laboratories from Belgium, the Czech Republic, Germany, Italy, Ireland, Poland and Spain participated in an international serosurvey. A total of 4190 sow sera from 651 farms were collected in 2002–2003 and examined in haemagglutination inhibition tests against H1N1, H3N2 and H1N2. Results In Belgium, Germany, Italy and Spain seroprevalence rates to each of the three SIV subtypes were high (≥30% of the sows seropositive) to very high (≥50%), except for a lower H1N2 seroprevalence rate in Italy (13·8%). Most sows in these countries with high pig populations had antibodies to two or three subtypes. In Ireland, the Czech Republic and Poland, where swine farming is less intensive, H1N1 was the dominant subtype (8·0–11·7% seropositives) and H1N2 and H3N2 antibodies were rare (0–4·2% seropositives). Conclusions Thus, SIV of H1N1, H3N2 and H1N2 subtype are enzootic in swine producing regions of Western Europe. In Central Europe, SIV activity is low and the circulation of H3N2 and H1N2 remains to be confirmed. The evolution and epidemiology of SIV throughout Europe is being further monitored through a second ‘European Surveillance Network for Influenza in Pigs’.

show abstract

Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 80%

Seroprevalence of H1N1, H3N2 and H1N2 influenza viruses in pigs in seven European countries in 2002–2003

Reeth

Brown²,

Dürrwald³

et al. 2008

Influenza Resp Viruses

View full text Add to dashboard Cite

show abstract

“…Little is known about SIV epidemiology in Eastern Europe. Antibodies to avian‐like swine H1N1 viruses were first detected in 1999–2000 on large pig farms located in the Czech Republic and in Slovenia (Buchta et al., 2001; Valencak and Golinar‐Oven, 2007). Although the viruses responsible are probably still circulating today, a typical clinical disease course seems to be rare (Golinar‐Oven and Valencak, 2007; Odehnalova et al., 2007; Rosenbergova et al., 2007).…”

Section: Historical Record Of the Genetic And Antigenic Evolution Of mentioning

confidence: 99%

Genetic and Antigenic Evolution of Swine Influenza Viruses in Europe and Evaluation of Their Zoonotic Potential

Simon

Madec

2009

Zoonoses and Public Health

109

View full text Add to dashboard Cite

Swine influenza is a highly contagious respiratory viral infection of pigs that has become enzootic in areas densely populated with pigs. Like other influenza A viruses, swine influenza virus (SIV) is genetically unstable and able to accumulate antigenic drifts and/or antigenic shifts. The pig is susceptible to both avian and human influenza viruses and can serve as an intermediate host in influenza virus ecology. Zoonotic agents may emerge in pigs following the modification of an established swine strain, adaptation of a strain of avian origin to the mammalian host, or reassortment between human and avian influenza viruses. Three different subtypes, H1N1, H3N2 and H1N2, are at present circulating in Europe. They differ from those found in North America and Asia and various lineages can be distinguished within each subtype. To date, European SIVs have not produced a global outbreak of influenza in humans but sporadic cases of SIV infection have been reported. This review presents a historical record of the genetic and antigenic evolution of SIVs in Europe. Our present understanding of the transmission of European SIVs from pigs to other animal species and to humans, together with the factors that limit inter-species transmission, is described.

show abstract

New Outbreak of Swine Influenza in the Czech Republic

Cited by 2 publications

References 13 publications

Seroprevalence of H1N1, H3N2 and H1N2 influenza viruses in pigs in seven European countries in 2002–2003

Seroprevalence of H1N1, H3N2 and H1N2 influenza viruses in pigs in seven European countries in 2002–2003

Genetic and Antigenic Evolution of Swine Influenza Viruses in Europe and Evaluation of Their Zoonotic Potential

Contact Info

Product

Resources

About