The disease normally impacts 6–12 week-old pigs and causes sneezing, nasal discharge, unilateral epixtaxis, and nasal deformity . Serovars A and D are identified causes of pneumonia in weaner and finisher pigs, but are hardly ever primary pathogens. Serologic evidence of P. multocida infection without disease has been reported in peccaries (Martins Gomes de Castro et al., 2014). However, both PAR and systemic pasteurellosis have been reported in wild boars (Kaden et al., 2001, Risco et al., 2013).
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