Tongue worm (Linguatula serrata) infection in a dog imported into the United Kingdom from Romania

Abstract

AbstractLinguatula serrata, also known as tongue worm, is a zoonotic parasite that lives in the nasal airways of dogs where it is responsible for mild to severe rhinosinusitis. In recent years, the number of pets entering the United Kingdom from abroad has increased, with a coinciding increase in the number of L. serrata infections diagnosed in UK veterinary clinics. Here, we report a case of linguatulosis in a 10‐month‐old rescued dog imported from Romania. Two weeks post‐arrival, the dog showed coughing, nasal discharge, epiphora and respiratory distress. Two worm‐like parasites were expelled by sneezing and they were morphologically identified as L. serrata. L. serrata eggs were also detected. A macrocyclic lactone treatment was administered, and clinical signs resolved. L. serrata should be included in the differential diagnosis of respiratory disease in imported dogs. Due to the zoonotic potential of this parasite, rapid diagnosis and correct treatment is essential.