New insights on metastrongyloid lungworms infecting cats of Sardinia, Italy.
In addition to the well-known Aelurostrongylus abstrusus (Strongylida: Angiostrongylidae), Troglostrongylus brevior (Strongylida: Crenosomatidae) has recently been diagnosed as a causative agent of bronco-pulmonary infections of cats in Spain and Italy. However, information concerning the impact of this species of lungworm on feline population is limited to a few case reports. From July 2011 to May 2013 an epidemiological survey was carried out on Sardinia island (Italy), where 107 individual faecal samples were examined by Baermann technique, and first-stage larvae were identified based on their morphology and characterization of molecular markers. The 29.9% (32/107) of cats examined were infested by broncho-pulmonary nematodes and, although A. abstrusus was the most frequently detected (n=27; 25.2%), larvae of T. brevior were also found (n=7; 6.5%). In addition, two cats (1.9%) were co-infested by both species. Overall metastrongyloid infection was higher in female cats (n=22; 38.6%) than in males (n=10; 20%) (χ(2)=4.39; p=0.036). The mean age of positive animals was 21.1 (±29.8) months, being infected animals from 2 months to 10 years of age. Of the 32 animals that scored positive for lungworms only 6 (18.8%) displayed a respiratory condition associated with lungworm infestations. Biomolecular characterization confirmed the morphological diagnosis of A. abstrusus. Positive samples that were identified at genus level as Troglostrongylus spp. were molecularly characterized as T. brevior. This study represents the first epidemiological survey on metastrongyloid lungworms of domestic cats in Sardinia and the first report of T. brevior on this island.
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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Tamponi
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy. Electronic address: varcasia@uniss.it.
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Varcasia
Dipartimento di Scienze Veterinarie, Università degli Studi di Messina, Messina, Italy.
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Brianti
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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Pipia
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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Frau
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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Pinna Parpaglia
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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Sanna
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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Garippa
Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Valenzano, Bari, Italy.
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Otranto
Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy.
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D000818:Animals; D002371:Cat Diseases / Q000453:epidemiology* / Q000469:parasitology*; D002415:Cats; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D003576:Electron Transport Complex IV / Q000235:genetics; D005243:Feces / Q000469:parasitology; D005260:Female; D007558:Italy / Q000453:epidemiology; D007814:Larva; D008297:Male; D008681:Metastrongyloidea / Q000033:anatomy & histology* / Q000145:classification / Q000235:genetics*; D008969:Molecular Sequence Data; D017206:Strongylida Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*
D021903:DNA, Ribosomal Spacer; D003576:Electron Transport Complex IV
Aelurostrongylus abstrusus; Broncho-pulmonary nematodes; Cats; Epidemiology; Sardinia; Troglostrongylus brevior