Crenosoma vulpis infection in a four-month old puppy

Abstract

Here we report the case of a diagnostic and treatment challenge in a four-month old dog from England, presented with one-month history of unproductive cough. Antigen blood test for Angiostrongylus vasorum infection was negative. Thoracic radiographs revealed a generalised bronchointerstitial pattern and bronchoscopy showed moving nematodes in the mucus of the bronchial wall. Additionally, Baermann technique revealed a high burden of larvae per gram of faeces. Morphological and molecular analyses confirmed that they were first stage larvae of Crenosoma vulpis. The infection was firstly treated with a spot-on solution containing 10% imidacloprid + 2.5% moxidectin, but the dog was still positiv..