Within‐Host Parasite Community and Coinfections in Urban Rats Naturally Infected by Angiostrongylus cantonensis: A Case of Host Tolerance?

María Teresa Galán-Puchades; Carla Gosálvez; María Trelis; Mercedes Gómez-Samblás; Jennifer Solano; Antonio Osuna; Sandra Sáez-Durán; Rubén Bueno-Marí; Marius V. Fuentes

doi:10.20944/preprints202311.0831.v1

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preprints.org > biology and life sciences > parasitology > doi: 10.20944/preprints202311.0831.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Within‐Host Parasite Community and Coinfections in Urban Rats Naturally Infected by Angiostrongylus cantonensis: A Case of Host Tolerance?

María Teresa Galán-Puchades

^* ,

Carla Gosálvez

María Trelis

Mercedes Gómez-Samblás

Version 1 : Received: 10 November 2023 / Approved: 13 November 2023 / Online: 14 November 2023 (07:44:35 CET)

A peer-reviewed article of this Preprint also exists.

Galán-Puchades, M.T.; Gosálvez, C.; Trelis, M.; Gómez-Samblás, M.; Solano-Parada, J.; Osuna, A.; Sáez-Durán, S.; Bueno-Marí, R.; Fuentes, M.V. Parasite Fauna and Coinfections in Urban Rats Naturally Infected by the Zoonotic Parasite Angiostrongylus cantonensis. Pathogens 2024, 13, 28. Galán-Puchades, M.T.; Gosálvez, C.; Trelis, M.; Gómez-Samblás, M.; Solano-Parada, J.; Osuna, A.; Sáez-Durán, S.; Bueno-Marí, R.; Fuentes, M.V. Parasite Fauna and Coinfections in Urban Rats Naturally Infected by the Zoonotic Parasite Angiostrongylus cantonensis. Pathogens 2024, 13, 28.

Abstract

When the zoonotic parasite of rodents that can cause human neuroangiostrongyliasis, i.e., Angiostrongylus cantonensis, is found in its natural definitive hosts, it is usually reported in isolation, as if the rat lungworm were the only component of the within-rat parasite community. In this study we report the coinfections found in rats naturally infected by A. cantonensis in urban populations of Rattus norvegicus and Rattus rattus in Valencia, Spain. In addition to the rat lungworms, which were found in 14 of the 125 rats studied (a prevalence of 11.20%), 18 other parasite infrapopulations (intestinal and tissular protists, microsporidia, and helminths) were found; some of them with high burdens. Fourteen of these 19 species found are potential zoonotic parasites, namely Blastocystis, Giardia duodenalis, Cryptosporidium spp., Enterocytozoon bieneusi, Encephalitozoon hellem, Toxoplasma gondii, Brachylaima spp., Hydatigera taeniaeformis larvae, Hymenolepis nana, Hymenolepis diminuta, Angiostrongylus cantonensis, Calodium hepaticum, Gongylonema neoplasticum and Moniliformis moniliformis. Despite the limited number of rats studied, the total predominance of coinfected rats as well as their high parasite loads seem to indicate a clear trend towards parasite tolerance.

Keywords

Angiostrongylus cantonensis; Rattus norvegicus; Rattus rattus; within-rat parasite community; coinfections; host tolerance

Subject

Biology and Life Sciences, Parasitology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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