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Samorek-Pieróg M, Cencek T, Łabuć E, Pac-Sosińska M, Pieróg M, Korpysa-Dzirba W, Bełcik A, Bilska-Zając E, Karamon J. Occurrence of Eucoleus aerophilus in wild and domestic animals: a systematic review and meta-analysis. Parasit Vectors 2023; 16:245. [PMID: 37475031 PMCID: PMC10360280 DOI: 10.1186/s13071-023-05830-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/06/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND Eucoleus aerophilus (syn. Capillaria aerophila) is a nematode with a worldwide geographical distribution. It causes a disease called lung capillariosis by affecting the respiratory tract of wild and domestic animals, and has also occasionally been described in humans. Despite steady increases in knowledge of the morphology of this neglected parasite, many aspects are still poorly understood. Epidemiological data regarding, for example, geographic distribution, range of hosts, clinical relevance and the actual zoonotic potential of this nematode are scarce and incomplete. METHODS This article is a systematic review based on the screening of three databases (PubMed, Web of Science and Science Direct) to identify eligible studies published from 1973 to the end of 2022. RESULTS From a total of 606 studies describing the occurrence of E. aerophilus, 141 articles from 38 countries worldwide were included in this meta-analysis, all of which presented results obtained mainly with flotation and necropsy. Due to the occurrence of E. aerophilus in many different species and different matrices (lungs and faeces), we decided to conduct the meta-analysis separately for each species with a given matrix. This systematic review confirmed the status of the Red fox as the main reservoir and main transmitter of E. aerophilus (average prevalence of 43% in faeces and 49% in lungs) and provided evidence of a higher prevalence of E. aerophilus in wild animals in comparison to domestic animals, such as dogs (3% in faeces) and cats (2% in faeces and 8% in lungs). Previous studies have investigated many host-related factors (age, sex, environmental/living conditions) in relation to the prevalence of E. aerophilus, but they show wide variations and no simple relationship has been demonstrates. Furthermore, mixed infections with other pulmonary nematodes, such as Crenosoma vulpis and/or Angiostrongylus vasorum, are reported very frequently, which greatly complicates the diagnosis. CONCLUSIONS This systematic review focused on identifying data gaps and promoting future research directions in this area. To the best of our knowledge, this is the first systematic review that evaluates and summarizes existing knowledge on the occurrence and prevalence of E. aerophilus in wild and domestic animals originating from different geographical locations worldwide.
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Affiliation(s)
- Małgorzata Samorek-Pieróg
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Puławy, Poland.
| | - Tomasz Cencek
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Puławy, Poland
| | - Emilia Łabuć
- Institute of Biological Sciences, Laboratory of Bioinformatics, University of Maria Curie-Skłodowska, Akademicka 19, 20-033, Lublin, Poland
| | - Małgorzata Pac-Sosińska
- Institute of Biological Sciences, Laboratory of Bioinformatics, University of Maria Curie-Skłodowska, Akademicka 19, 20-033, Lublin, Poland
| | - Mateusz Pieróg
- Institute of Biological Sciences, Department of Animal Physiology and Pharmacology, University of Maria Curie-Skłodowska, Akademicka 19, 20-033, Lublin, Poland
| | - Weronika Korpysa-Dzirba
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Puławy, Poland
| | - Aneta Bełcik
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Puławy, Poland
| | - Ewa Bilska-Zając
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Puławy, Poland
| | - Jacek Karamon
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Puławy, Poland
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Cheraghi B, Vafaei R, Nassiri SM. The first report of clinical case of intestinal trichomoniasis caused by Tritrichomonas foetus in a cat with chronic diarrhea in Iran. IRANIAN JOURNAL OF VETERINARY RESEARCH 2021; 22:248-250. [PMID: 34777528 DOI: 10.22099/ijvr.2021.39422.5724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 05/14/2021] [Accepted: 06/27/2021] [Indexed: 09/30/2022]
Abstract
Background Tritrichomonas foetus is recently found to be one of the causes of chronic diarrhea in domestic cats but there is no report of feline intestinal trichomoniasis in Iran. Case description A 9 months female domestic short-haired cat was referred to our hospital with a history of chronic diarrhea over the past two months, and with an unsuccessful previous antibiotic therapy in another clinic. Findings/treatment and outcome Clinical examination revealed 39.8°C rectal temperature. Complete blood count (CBC) showed moderate inflammatory leukogram. By the wet-mount faecal assessment, moving organisms were observed. Rectal scarping dry-mount cytology revealed many inflammatory cells along with huge numbers of trophozoites with typical morphologic characteristics including central axostyle, undulating membrane, flagella, and one laterally located nucleus. Polymerase chain reaction (PCR) was performed and confirmed the diagnosis of T. foetus. After treatment with metronidazole and probiotics, the cat was completely recovered. Conclusion This study represents the first case of intestinal trichomoniasis in a cat with chronic diarrhea in Iran.
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Affiliation(s)
- B Cheraghi
- MSc Student in Internal Medicine, Department of Internal Medicine, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - R Vafaei
- Resident of Clinical Pathology, Department of Internal Medicine, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - S M Nassiri
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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