Correlates of Co-Infection with Coccidiosis and Avian Malaria in House Finches (Haemorhous mexicanus).

Autor:	Penha VAS; Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Setor de Ciências Biológicas, 100 Cel. Francisco H. dos Santos Avenue, Curitiba, Paraná 81531-980, Brazil.; School of Life Sciences, Arizona State University, ASU Life Sciences Building E, 400 E Tyler Mal, Tempe, Arizona 85287, USA.; Organismal and Evolutionary Research Programme, University of Helsinki, Biokeskus 3, PL 65 (Viikinkaari 1), Helsinki 00014, Finland., Manica LT; Departamento de Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Cel. Francisco H. dos Santos Avenue, 100, Curitiba, Paraná 81531-980, Brazil., Barrand ZA; Pathogen and Microbiome Institute, Northern Arizona University, Building 56, 1395 South Knoles Drive, Flagstaff, Arizona 86011, USA.; Translational Genomics Research Institute, 3051 West Shamrell Boulevard, Flagstaff, Arizona 86001, USA., Hepp CM; Pathogen and Microbiome Institute, Northern Arizona University, Building 56, 1395 South Knoles Drive, Flagstaff, Arizona 86011, USA.; School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Building 90, 1295 South Knoles Drive, Flagstaff, Arizona 86011, USA., McGraw KJ; School of Life Sciences, Arizona State University, ASU Life Sciences Building E, 400 E Tyler Mal, Tempe, Arizona 85287, USA.
Jazyk:	angličtina
Zdroj:	Journal of wildlife diseases [J Wildl Dis] 2024 Jul 01; Vol. 60 (3), pp. 634-646.
DOI:	10.7589/JWD-D-23-00175
Abstrakt:	Pathogens have traditionally been studied in isolation within host systems; yet in natural settings they frequently coexist. This raises questions about the dynamics of co-infections and how host life-history traits might predict co-infection versus single infection. To address these questions, we investigated the presence of two parasites, a gut parasite (Isospora coccidians) and a blood parasite (Plasmodium spp.), in House Finches (Haemorhous mexicanus), a common passerine bird in North America. We then correlated these parasitic infections with various health and condition metrics, including hematological parameters, plasma carotenoids, lipid-soluble vitamins, blood glucose concentration, body condition, and prior disease history. Our study, based on 48 birds captured in Tempe, Arizona, US, in October 2021, revealed that co-infected birds exhibited elevated circulating lutein levels and a higher heterophil:lymphocyte ratio (H/L ratio) compared to those solely infected with coccidia Isospora spp. This suggests that co-infected birds experience heightened stress and may use lutein to bolster immunity against both pathogens, and that there are potentially toxic effects of lutein in co-infected birds compared to those infected solely with coccidia Isospora sp. Our findings underscore the synergistic impact of coparasitism, emphasizing the need for more co-infection studies to enhance our understanding of disease dynamics in nature, as well as its implications for wildlife health and conservation efforts. (© Wildlife Disease Association 2024.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu