Τίτλος:
Serological Evidence of Pandemic H1N1 Influenza Virus Infections in
Greek Swine
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The introduction of the 2009 pandemic H1N1 (pH1N1) influenza virus in
pigs changed the epidemiology of influenza A viruses (IAVs) in swine in
Europe and the rest of the world. Previously, three IAV subtypes were
found in the European pig population: an avian-like H1N1 and two
reassortant H1N2 and H3N2 viruses with human-origin haemagglutinin (HA)
and neuraminidase proteins and internal genes of avian decent. These
viruses pose antigenically distinct HAs, which allow the retrospective
diagnosis of infection in serological investigations. However,
cross-reactions between the HA of pH1N1 and the HAs of the other
circulating H1 IAVs complicate serological diagnosis. The prevalence of
IAVs in Greek swine has been poorly investigated. In this study, we
examined and compared haemagglutination inhibition (HI) antibody titres
against previously established IAVs and pH1N1 in 908 swine sera from 88
herds, collected before and after the 2009 pandemic. While we confirmed
the historic presence of the three IAVs established in European swine,
we also found that 4% of the pig sera examined after 2009 had HI
antibodies only against the pH1N1 virus. Our results indicate that pH1N1
is circulating in Greek pigs and stress out the importance of a vigorous
virological surveillance programme.
Συγγραφείς:
Kyriakis, C. S.
Papatsiros, V. G.
Athanasiou, L. V. and
Valiakos, G.
Brown, I. H.
Simon, G.
Van Reeth, K. and
Tsiodras, S.
Spyrou, V.
Billinis, C.
Περιοδικό:
Zoonoses and Public Health
Λέξεις-κλειδιά:
Swine; influenza; H1N1 pandemic virus; Greece
