Feline lungworms: what a dilemma

Area of Science:

• Veterinary Parasitology
• Feline Medicine
• Nematology

Background:

• Aelurostrongylus abstrusus is the primary lungworm affecting domestic cats (Felis catus).
• Other respiratory nematodes in cats, such as Troglostrongylus spp., Oslerus rostratus, and Capillaria aerophila, are poorly understood.
• Recent findings have increased interest in these neglected parasites, but their impact on feline respiratory health remains unclear.

Purpose of the Study:

• To review the current knowledge on feline lungworms.
• To address the ambiguities and dilemmas in recent scientific literature regarding these parasites.
• To clarify the epidemiology, pathogenicity, and diagnosis of neglected respiratory nematodes in cats.

Main Methods:

• Literature review of recent studies on feline respiratory nematodes.
• Synthesis of existing data on Aelurostrongylus abstrusus, Troglostrongylus spp., Oslerus rostratus, and Capillaria aerophila.
• Critical analysis of current scientific debates and uncertainties.

Main Results:

• While Aelurostrongylus abstrusus is well-recognized, the roles of other nematodes in feline respiratory disease are not well-defined.
• Recent research has provided new data but also raised significant questions about these parasites.
• Epidemiology, pathogenesis, and diagnostic methods for Troglostrongylus spp., O. rostratus, and C. aerophila remain incompletely understood.

Conclusions:

• There is a need for further research to clarify the significance of various lungworms in feline respiratory health.
• Addressing the current knowledge gaps is crucial for accurate diagnosis and treatment of respiratory diseases in cats.
• The scientific community faces ongoing challenges in fully understanding the impact of these neglected nematodes.