Effect of herd size on subclinical infection of swine in Vietnam with influenza A viruses
We demonstrate the asymptomatic circulation of IAV-S in the Vietnamese pig population.
Page 4 of articles about influenza
Assessment of different samples to detect main swine respiratory pathogens
The data present bronchial scraping as an equally effective or even better alternative to bronchoalveolar lavage fluid for detecting main porcine respiratory disease complex agents.
Influenza A virus in swine: situation in European countries
In the wake of the so-called “swine flu” a European surveillance program was carried out in 2013-2015: H1N1pdm is present in several European countries, and at particularly high prevalence in Britain and Ireland.
Immune responses and virus shedding in pigs following different A(H1N1)09 infection routes
The differences in shedding pattern and cytokine and immune responses are important for studies of disease pathogenesis and assessment of vaccine protective efficacy.
Are people living near modern swine production facilities at increased risk of Influenza virus infection?
Findings suggest that concentrated swine feeding operations amplified transmission of influenza during years in which H1N1 was circulating.
Distinct iImmune responses and virus shedding in pigs following infection with A(H1N1)09
Our data shows that natural infection by contact induces remarkably high innate and adaptive immune response, although the animals were exposed to a very low virus dose.
Immunisation of fattening pigs against influenza: a case study
The reasons behind the vaccination against influenza virus on a group of fattenig units with recurrent respiratory clinical pictures that belong to an integrated production system are discussed. Impact on production parameters and economic results are also shown.
The genetic diversity of contemporary swine influenza A viruses in the United States
In the United States, there are 17 genetic clades that have emerged and persisted following spillover events from non-swine (namely human) hosts and subsequent ecological and evolutionary processes
Health protocols for replacements: respiratory and systemic diseases (2/3)
We are talking about PRRSV, M. hyo, PCV2, App and swine influenza virus.
Evaluation of screening assays for the detection of Influenza A virus serum antibodies in swine
Serum antibodies against NP provide an ideal universal diagnostic screening target and could provide a cost-effective approach for the detection and surveillance of IAV infections in swine populations.
Considerations for selecting influenza vaccines for swine
Inactivated vaccines can be effective if used in conjunction with other practices, such as controlled movement of animals and people and with careful analysis of whether the vaccine antigen is a good antigenic match with the circulating strain.
Genome plasticity of triple-reassortant H1N1 influenza A virus during infection of vaccinated pigs
Results demonstrated remarkable IAV diversity, and the complex, rapid and dynamic evolution of IAV during infection of vaccinated pigs that can only be appreciated with repeated sampling of individual animals and deep sequence analysis.
Evolution of swine influenza viruses and its impact on antigenic cross-reactivity
Swine influenza viruses are diverse at genetic and antigenic level, resulting in a limited cross-reactivity in viruses sharing a common ancestor or belonging to a same subtype.
Heterologous challenge in the presence of maternally-derived antibodies results in vaccine-associated enhanced respiratory disease in weaned piglets
Our data indicates that although high titers of vaccine-derived MDA reduced homologous virus infection, transmission, and disease, MDA alone was sufficient to induce vaccine associated enhanced respiratory disease upon heterologous infection.
Characterization of viral load, viability and persistence of IAV in air and on surfaces
Our results indicate that during outbreaks of IAV in swine, aerosols and surfaces in barns contain significant levels of IAV potentially representing an exposure hazard to both swine and people.
Widespread detection and characterization of porcine parainfluenza virus 1 in pigs in the United States
Taken together, the results confirm the widespread presence of PPIV1 in the United States swine herd.