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Gomes-Gonçalves S, Palmeira JD, Ferreira H, Santos-Silva S, Mesquita JR. Occurrence and Phylogenetic Analysis of Zoonotic Enteropathogenic Protist Parasites in Asymptomatic Domestic Ruminants from Portugal. Pathogens 2023; 12:1341. [PMID: 38003805 PMCID: PMC10675233 DOI: 10.3390/pathogens12111341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Enteropathogenic parasites are of significant concern for public health due to their zoonotic potential and their impact on human and animal health. In this study, we investigated their occurrence and characterized these enteropathogens in asymptomatic domestic ruminants from Portugal. A total of 302 stool samples were collected from cattle (n = 166), sheep (n = 73), and goats (n = 63) in various regions of Portugal and tested for Cryptosporidium spp., Giardia duodenalis, Enterocytozoon bieneusi, Blastocystis sp., and Balantioides coli by PCR. The occurrence of Cryptosporidium spp. was found to be 12.7% (8/63, 95% confidence interval [CI]: 5.65-23.5) in goats; however, no sample was found to be positive for Cryptosporidium spp. in cattle and sheep. For E. bieneusi, 6.35% (4/63; 95%CI: 1.76-15.47) of goats were found to be positive; however, no cattle or sheep were found to be positive. Blastocystis sp. was found in sheep (9.59%; 7/73; 95% [CI]: 0.394-18.76) and goats (12.70%; 8/63; 95% [CI]: 5.65-23.50) but none was found in cattle. No positive results for G. duodenalis or B. coli were detected in this study. This study provides essential baseline information for understanding the silent shedding and epidemiology of these enteropathogens in Portugal, contributing to overall livestock health and related occupational safety. Raising awareness among consumers, veterinarians, and farm owners is crucial to minimize the risk of transmission and promote effective disease control strategies.
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Affiliation(s)
- Sara Gomes-Gonçalves
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal;
| | - Josman Dantas Palmeira
- UCIBIO—Applied Molecular Biosciences Unit, University of Porto, 4050-313 Porto, Portugal; (J.D.P.); (H.F.)
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal
- Microbiology, Biological Sciences Department, Faculty of Pharmacy of University of Porto, 4050-313 Porto, Portugal
| | - Helena Ferreira
- UCIBIO—Applied Molecular Biosciences Unit, University of Porto, 4050-313 Porto, Portugal; (J.D.P.); (H.F.)
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal
- Microbiology, Biological Sciences Department, Faculty of Pharmacy of University of Porto, 4050-313 Porto, Portugal
| | - Sérgio Santos-Silva
- School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal;
| | - João R. Mesquita
- School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal;
- Epidemiology Research Unit (EPIUnit), Instituto de Saúde Pública da Universidade do Porto, 4050-600 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
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