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Revista de Salud Animal
Print version ISSN 0253-570X
Abstract
ESPINOSA, Ivette and MARTINEZ, Siomara. Pasteurella multocida, Bordetella bronchiseptica AND Streptococcus suis IN THE PORCINE RESPIRATORY COMPLEX. Rev Salud Anim. [online]. 2008, vol.30, n.3, pp. 137-145. ISSN 0253-570X.
The porcine respiratory complex is the denomination for multiple changes and lesions that result in a decreased respiratory capacity of affected pigs. It is a dynamic process which involves different factors such as environment, host and different microbial interactions between primary agents like Mycoplasma hypneumoniae or the porcine reproductive respiratory syndrome virus with Pasteurella multocida, Bordetella bronchiseptica or Streptococcus suis which act as secondary pathogens and increase the severity of the disease. These entities correspond to genera and species being part of the normal flora and the pathogenic capacity lies on different genes which are acquired by horizontal transfer, thus there are different genotypes associated or not to the pathogen. The aim of this article is to make an analysis about bacteria virulence attributes which act as secondary pathogens in the respiratory disease in pigs. It is important to consider the management and control of the farm based on biosecurity and it is necessary to have different diagnostic methods for testing bacteria virulence attributes that act as secondary agents, because nowadays vaccination program are directed to primary agents.
Keywords : Pasteurella multocida; Streptococcus suis; Bordetella bronchiseptica; porcine respiratory complex.