Update on Actinobacillus pleuropneumoniae-knowledge, gaps and challenges

Area of Science:

• Veterinary Microbiology
• Animal Pathology
• Swine Disease Research

Background:

• Porcine pleuropneumonia, caused by Actinobacillus pleuropneumoniae, results in substantial economic losses globally.
• The disease presents with severe respiratory distress and high mortality rates in affected pigs.
• Despite extensive research since 1957, understanding of the pathogen and host interactions is incomplete.

Purpose of the Study:

• To review current knowledge on Actinobacillus pleuropneumoniae, covering pathogenesis, epidemiology, transmission, and host immune response.
• To identify critical knowledge gaps and challenges in the prevention, detection, and control of porcine pleuropneumonia.
• To consolidate expertise from science, industry, and clinical practice to address disease management.

Main Methods:

• Literature review of published results on porcine pleuropneumonia.
• Inclusion of expert opinions and empirical observations from a DISCONTOOLS initiative.
• Synthesis of information on pathogenesis, epidemiology, transmission, immune response, and control strategies.

Main Results:

• Significant progress has been made in understanding Actinobacillus pleuropneumoniae and host-pathogen interactions.
• Commercial pig colonization complicates experimental findings and disease control.
• Disease development involves multiple factors often studied in isolation, hindering comprehensive understanding.

Conclusions:

• Key knowledge gaps persist in understanding the multifactorial nature of porcine pleuropneumonia.
• Effective control requires addressing challenges in prevention, detection, and transmission.
• Future research and collaborative efforts are crucial for mitigating economic impacts and improving swine health.