Feline lungworms unlock a novel mode of parasite transmission.
2015
Colella, Vito | Giannelli, Alessio | Brianti, Emanuele | Ramos, Rafael Antonio Nascimento | Cantacessi, Cinzia | Dantas-Torres, Filipe | Otranto, Domenico
Snail-borne lungworms exert an enormous toll on the health and welfare of animals and humans. Of these parasites, Aelurostrongylus abstrusus and Troglostrongylus brevior affect the respiratory tract of felids. These lungworms share both the ecological niche and the species of snail (Helix aspersa) acting as intermediate host. Recently, the ability of H. aspersa to shed infective third-stage larvae (L3s) of A. abstrusus and T. brevior in the environment has been demonstrated, matching previous knowledge of mode of transmission of zoonotic lungworms. Here, we evaluated, for the first time, the ability of A. abstrusus and T. brevior L3s to infect new, susceptible snail hosts following their release from experimentally infected molluscs, and refer to this novel route of parasite transmission as intermediesis. The implications of snail-to-snail transmission in the epidemiology of snail-borne diseases are also discussed.
Mostrar más [+] Menos [-]This is the final version of the article. It first appeared from Nature Publishing Group via http://dx.doi.org/10.1038/srep13105
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