tetano
Editor, Senior Moderator
Vet Rec. 2012 Aug 4. [Epub ahead of print]
Descriptive clinical and epidemiological characteristics of influenza A H1N1 2009 virus infections in pigs in England.
Williamson SM, Bidewell CA, Tucker AW, McCrone IS, Wood JL, Brons N, Habernoll H, Essen SC, Brown IH; COSI, Combating Swine Influenza, Wellcome Trust-MRC-BBSRC-Defra UK consortium.
Source
Animal Health and Veterinary Laboratories Agency, - Weybridge, Addlestone, Surrey KT15 3NB, UK.
Abstract
Infection of pigs with influenza A H1N1 2009 virus (A(H1N1)pdm09) was first detected in England in November 2009 following global spread of the virus in the human population. This paper describes clinical and epidemiological findings in the first English pig farms in which A(H1N1)pdm09 influenza virus was detected. These farms showed differences in disease presentation, spread and duration of infection. The factors likely to influence these features are described and relate to whether pigs were housed or outdoors, the age of the pigs, inter-current disease and the management system of the unit. Infection could be mild or clinically inapparent in breeding pigs with more typical respiratory disease being identified later in their progeny. Mortality was low where disease was uncomplicated by environmental stresses or concurrent infections. Where deaths occurred in pigs infected with A(H1N1)pdm09 influenza, they were mainly due to other infections, including streptococcal disease due to Streptococcus suis infection. This paper demonstrates the ease with which A(H1N1)pdm09 virus was transmitted horizontally and maintained in a pig population.
PMID:
22865115
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22865115
Descriptive clinical and epidemiological characteristics of influenza A H1N1 2009 virus infections in pigs in England.
Williamson SM, Bidewell CA, Tucker AW, McCrone IS, Wood JL, Brons N, Habernoll H, Essen SC, Brown IH; COSI, Combating Swine Influenza, Wellcome Trust-MRC-BBSRC-Defra UK consortium.
Source
Animal Health and Veterinary Laboratories Agency, - Weybridge, Addlestone, Surrey KT15 3NB, UK.
Abstract
Infection of pigs with influenza A H1N1 2009 virus (A(H1N1)pdm09) was first detected in England in November 2009 following global spread of the virus in the human population. This paper describes clinical and epidemiological findings in the first English pig farms in which A(H1N1)pdm09 influenza virus was detected. These farms showed differences in disease presentation, spread and duration of infection. The factors likely to influence these features are described and relate to whether pigs were housed or outdoors, the age of the pigs, inter-current disease and the management system of the unit. Infection could be mild or clinically inapparent in breeding pigs with more typical respiratory disease being identified later in their progeny. Mortality was low where disease was uncomplicated by environmental stresses or concurrent infections. Where deaths occurred in pigs infected with A(H1N1)pdm09 influenza, they were mainly due to other infections, including streptococcal disease due to Streptococcus suis infection. This paper demonstrates the ease with which A(H1N1)pdm09 virus was transmitted horizontally and maintained in a pig population.
PMID:
22865115
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22865115