In this context, the purpose of this study was to report the sequence and analysis of the cDNAs encoding wild boar LFA-1 (WbCD11a/WbCD18) and to point out the wild boar LFA-1 specificities that might confer resistance to Actinobacillus pleuropneumoniae-associated pneumonia. Here, ITGB2 is linked to susceptibility to pneumonia measurement.