French network for the surveillance of influenza viruses in pigs (Résavip)
From 2011 to 2013, the French network for the surveillance of influenza viruses in pigs (Résavip) has made it possible to conduct 629 visits in 476 farms.
Page 7 of articles about influenza
Effect of feed restriction on performance and nutrient metabolism in pigs co-infected with M. hyo and SIV
Altogether, these results indicate that modifying feeding practices could help to prepare animals to overcome an influenza infection.
Risk factors for detecting influenza A virus in growing pigs
Possible modifications to farm type and pig flow should be considered when constructing IAV control and prevention strategies.
Influenza A virus acquires enhanced pathogenicity and transmissibility after serial passages in swine
Pigs can readily induce adaptive mutational changes to a precursor pandemic-like virus to transform it into a highly virulent and infectious form akin to that of the pandemic H1N1/2009 virus.
OIE: Proposed new HA gene cluster naming system for designating influenza viruses in pigs
The proposed system is a phylogenetic classification system, distinguishing clusters of viruses that share common genetic characteristics.
Characterization of influenza A outbreaks in swine herds and measures to reduce zoonotic transmission
The goals of this study were to characterize influenza infections in Minnesota pigs and assess biosecurity measures used by swine workers.
Factors associated with H1N1 or H1N2 influenza virus infections in fattening pigs
Factors related to external and internal biosecurity and to the control of inside climatic conditions should be considered together when implementing programmes to better control SIV infections.
Swine influenza viruses: mechanisms of evolution and current diversity in European pigs
Four virus lineages, having clearly distinguishable HA, are currently co-circulating in European pigs and can be considered as enzootic viruses, even if their relative prevalence and level of incidence vary from one country to another.
Clinical case: Outbreaks of respiratory and reproductive disorder in a pig farm
After the clinical and serological evaluation it is decided to vaccinate against PRRSV, with which we achieve a gradual improvement in the health status on the farm. Some months later, a severe cough appears in the fattening pigs that later also appears in the nursery and in the sows.
In vitro and ex vivo analyses of co-infections with SIV and PRRSv
This study is the first to show an impact of PRRSV/SIV co-infection and superinfections in the cellular and tissue immune response at the molecular level.
Factors associated with swine influenza virus infection differs according to the subtype
Different factors were specifically associated with either H1N1 or H1N2 SIV infections.
Genetic characterization of influenza A viruses circulating in pigs in Spain
Phylogenetic analysis revealed that they belonged to the lineages ‘‘Avian-Like’’ H1N1, ‘‘Human-Like’’ H3N2, and ‘‘Human-Like’’ H1N2
Clinical case: Effects of the adaptation to the welfare law in a PRRS outbreak
This farm produces its own gilts from grandmother sows, but taking advantage of the adaptation to meet the needs of the welfare law it was decided to increase its capacity from 600 sows to 1,200.
Dynamics of influenza A virus infections in permanently infected pig farms
The aims of this study were to characterize the epidemiology of recurrent swine influenza virus infections and identify their main determinants.
Effect of influenza vaccination on influenza bioaerosol generation
In this study, influenza virus detection in pigs and air samples was reduced through vaccination.
Swine influenza virus infection dynamics in two pig farms; results of a longitudinal assessment
Influenza virus infection in pigs might present different patterns, from an epidemic outbreak to an endemic form with different waves of infections with a lower incidence.