The Pathogenesis of the Lesions Elicited by Aelurostrongylus abstrusus Durings its Prepatent Period

Abstract

Aelurostrongylus abstrusus caused focal interstitial pneumonia during the first 25 days after infection. Although the prepatent period of A. abstrusus is 42 d the adult worms lay eggs in the pulmonary parenchyma as early as 25 d after infection. These eggs become centres of extensive granulomata. Adult worms elicit focal interstitial pneumonia, bronchiolitis, and a variety of pulmonary arterial changes.