Infectious agents associated with respiratory diseases in 125 farrow-to-finish pig herds: A cross-sectional study

Survey Of Infectious Agents Associated With Porcine Respiratory Disease Complex (PRDC) In Serbian Swine Herds Using Polymerase Chain Reaction (PCR) Detection

“…In addition, the high detection rate of Mhp in the studied PRDC cases is in line with the results of other reports on the role of Mhp as a primary bacterial respiratory pathogen in this complex, preparing the way for others to produce more severe lesions [3,7]. Pasteurella multocida was signifi cantly associated with all viral, and/or viral/Mhp combinations detected in this study, as well as with other opportunistic bacteria.…”

“…Combinations of viruses and/or Mhp and opportunistic bacteria have been reported to work in a synergistic fashion producing more severe and/or fatal pneumonias then those induced by each individual agent [4]. The most common respiratory pathogens reported are Mhp, PRRSV, PCV2, Pm, App, Hps and Sspp [5][6][7][8]. PRDC is frequent and usually present in farrow-to-fi nish systems in Serbia, however, a comprehensive survey of the pathogens involved in PRDC in Serbian pigs has never performed.…”

Porcine reproductive and respiratory syndrome virus (PRRSv) modified-live vaccine reduces virus transmission in experimental conditions

“…The syndrome is directly responsible for important economic losses in chronically infected farms and is also an important cause of antibiotics usage because of bacterial complications [1]. In France, the virus prevalence is very high in densely populated pig areas such as Brittany, the main pig production area in the country [2]. In other French areas, some control strategies set up shortly after the introduction of the virus in the 1990's and based on active surveillance and early elimination of infected units, led to different regional statuses in the country [3].…”

“…Heterogeneity of statuses between areas in France or in Europe due to different management policies of the virus may lead to sanitary requirements for pig movements within the country or the Union. PRRS virus is also a main co-factor of the Porcine Respiratory Disease Complex [2] and other syndromes such as Postweaning Multisystemic Wasting Syndrome (PMWS) [4]. As a result, this disease has been classified as one of the most detrimental disease in pig farms in the French ranking of animal diseases [5].…”

Limited efficacy of antimicrobial metaphylaxis in finishing pigs: A randomized clinical trial

“…hyopneumoniae (Mhp) is also commonly involved (Fablet et al, 2012;Hillen et al, 2014). The clinical disease arises from a complex interplay of multiple host, pathogen, environment, and management risk factors (Brockmeier et al, 2002;Opriessnig et al, 2011).…”