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Cyclospora

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1. A hybrid reference-guided de novo assembly approach for generating Cyclospora mitochondrion genomes (PubMed)

A hybrid reference-guided de novo assembly approach for generating Cyclospora mitochondrion genomes Cyclospora cayetanensis is a coccidian parasite associated with large and complex foodborne outbreaks worldwide. Linking samples from cyclosporiasis patients during foodborne outbreaks with suspected contaminated food sources, using conventional epidemiological methods, has been a persistent challenge. To address this issue, development of new methods based on potential genomically-derived

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2018 Gut pathogens

2. Development of Molecular Diagnosis Using Multiplex Real-Time PCR and T4 Phage Internal Control to Simultaneously Detect Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis from Human Stool Samples (PubMed)

Development of Molecular Diagnosis Using Multiplex Real-Time PCR and T4 Phage Internal Control to Simultaneously Detect Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis from Human Stool Samples This study aimed to develop a new multiplex real-time PCR detection method for 3 species of waterborne protozoan parasites (Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis) identified as major causes of traveler's diarrhea. Three target genes were specifically

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2018 The Korean journal of parasitology

3. Purification of Cyclospora cayetanensis oocysts obtained from human stool specimens for whole genome sequencing (PubMed)

Purification of Cyclospora cayetanensis oocysts obtained from human stool specimens for whole genome sequencing Cyclospora cayetanensis is a food-borne intestinal human parasite that causes outbreaks of diarrhea. There is a need for efficient laboratory methods for strain-level characterization to assist in outbreak investigations. By using next generation sequencing, genomic sequences can be obtained and compared to identify potential genotyping markers. However, there is no method available

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2018 Gut pathogens

4. Detection of Cryptosporidium and Cyclospora Oocysts from Environmental Water for Drinking and Recreational Activities in Sarawak, Malaysia (PubMed)

Detection of Cryptosporidium and Cyclospora Oocysts from Environmental Water for Drinking and Recreational Activities in Sarawak, Malaysia Cryptosporidiosis and cyclosporiasis are caused by waterborne coccidian protozoan parasites of the genera Cryptosporidium and Cyclospora, respectively. This study was conducted to detect Cryptosporidium and Cyclospora oocysts from environmental water abstracted by drinking water treatment plants and recreational activities in Sarawak, Malaysia. Water samples (...) (12 each) were collected from Sungai Sarawak Kanan in Bau and Sungai Sarawak Kiri in Batu Kitang, respectively. In addition, 6 water samples each were collected from Ranchan Recreational Park and UNIMAS Lake at Universiti Malaysia Sarawak, Kota Samarahan, respectively. Water physicochemical parameters were also recorded. All samples were concentrated by the iron sulfate flocculation method followed by the sucrose floatation technique. Cryptosporidium and Cyclospora were detected by modified Ziehl

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2017 BioMed research international

5. Simultaneous Molecular Detection of Cryptosporidium and Cyclospora from Raw Vegetables in Korea (PubMed)

Simultaneous Molecular Detection of Cryptosporidium and Cyclospora from Raw Vegetables in Korea Cryptosporidium and Cyclospora are well-known coccidian protozoa that can cause waterborne and foodborne diarrheal illnesses. There have been a few reports regarding contamination in different vegetables with Cryptosporidium, but no data are available regarding the sources of Cyclospora infections in Korea. In the present study, we collected 6 kinds of vegetables (perilla leaves, winter-grown (...) cabbages, chives, sprouts, blueberries, and cherry tomatoes) from July 2014 to June 2015, and investigated contamination by these 2 protozoa using multiplex quantitative real-time PCR. Among 404 vegetables, Cryptosporidium and Cyclospora were detected in 31 (7.7%) and 5 (1.2%) samples, respectively. In addition, Cryptosporidium was isolated from all 6 kinds of vegetables, whereas Cyclospora was detected in 4 kinds of vegetables (except perilla leaves and chives). Cryptosporidium (17.8%) and Cyclospora

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2017 The Korean journal of parasitology

6. Detection of Cryptosporidium parvum and Cyclospora cayetanensis infections among people living in a slum area in Kathmandu valley, Nepal (PubMed)

Detection of Cryptosporidium parvum and Cyclospora cayetanensis infections among people living in a slum area in Kathmandu valley, Nepal The aim of this study is to determine the prevalence of Cyclospora cayetanensis and Cryptosporidium parvum infections among people living a slum in Kathmandu valley, Nepal.Ten different parasites were detected in the stool samples; the prevalence of any parasite was in 27.1% (71/262). The prevalence of C. cayetanensis and C. parvum were 14.1% (10/71) and 5.6

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2017 BMC research notes

7. Cyclospora cayetanensis in a patient with travelers' diarrhea: case report and review. (PubMed)

Cyclospora cayetanensis in a patient with travelers' diarrhea: case report and review. In recent years, several studies have shown that Cyclospora cayetanensis is a worldwide intestinal pathogen, and it has been implicated in a number of sporadic cases and epidemic outbreaks of diarrheal illness in several endemic areas. The parasite is associated with prolonged and relapsing watery diarrhea in immunocompetent persons, as well as in AIDS patients. Most reports of Cyclospora infection concern (...) travelers visiting endemic countries. In European countries, a few cases of Cyclospora cayetanensis infection have been reported, and almost all of them were observed in persons after foreign travel.

2017 Journal of Travel Medicine

8. Comparative genomics reveals Cyclospora cayetanensis possesses coccidia-like metabolism and invasion components but unique surface antigens (PubMed)

Comparative genomics reveals Cyclospora cayetanensis possesses coccidia-like metabolism and invasion components but unique surface antigens Cyclospora cayetanensis is an apicomplexan that causes diarrhea in humans. The investigation of foodborne outbreaks of cyclosporiasis has been hampered by a lack of genetic data and poor understanding of pathogen biology. In this study we sequenced the genome of C. cayetanensis and inferred its metabolism and invasion components based on comparative genomic

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2016 BMC genomics

9. Multiplex-Touchdown PCR to Simultaneously Detect Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis, the Major Causes of Traveler’s Diarrhea (PubMed)

Multiplex-Touchdown PCR to Simultaneously Detect Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis, the Major Causes of Traveler’s Diarrhea This study aimed to develop a multiplex-touchdown PCR method to simultaneously detect 3 species of protozoan parasites, i.e., Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis, the major causes of traveler's diarrhea and are resistant to standard antimicrobial treatments. The target genes included the Cryptosporidium

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2016 The Korean journal of parasitology

10. Cyclospora

Cyclospora Cyclospora Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Cyclospora Cyclospora Aka: Cyclospora , Cyclosporiasis (...) , Cyclospora cayetanensis From Related Chapters II. Pathophysiology Coccidian in Eimeriidae family Organism: Cyclospora cayetanensis Infects the in humans Transmission via Cyclospora oocyst ingestion Endemic to some tropical and subtropical regions Fresh produce (outbreaks in U.S. and Canada) Fecal-oral transmission is unlikely Oocysts sporulate (over days to weeks) outside a host before they are once again infective Incubation: 2-14 days (1 week on average) III. Symptoms , weight loss and Low-grade fever

2018 FP Notebook

11. Marked seasonality of Cyclospora cayetanensis infections: ten-year observation of hospital cases, Honduras. (PubMed)

Marked seasonality of Cyclospora cayetanensis infections: ten-year observation of hospital cases, Honduras. Document seasonality occurrence and epidemiologic characteristics of Cyclospora cayetanensis infections during a 10-year period from patients consulting at the University Hospital, Honduras.Retrospective non interventional hospital-based study analyzed laboratory results from the period 2002 to 2011 of fresh and Ziehl-Nielsen carbolfuchsin stained routine stool samples received (...) ), with 83.3 % of 125 cases occurring in those rainy months. All C. cayetanensis cases came from urban poor neighborhoods; male/female relation was 1:1 except in 2006, when all patients were females (p = 0.05; r(2) = 22,448). Forty four point eight percent of the stool samples were diarrheic or liquid and 65.6 % infections were identified in children 10 years old or less. Enteric helminths and protozoa co-infected Cyclospora positive patients in 52 instances.: 8 % Ascaris lumbricoides, 8 % Giardia

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2016 BMC Infectious Diseases

12. Multilocus Sequence Typing Tool for Cyclospora cayetanensis. (PubMed)

Multilocus Sequence Typing Tool for Cyclospora cayetanensis. Because the lack of typing tools for Cyclospora cayetanensis has hampered outbreak investigations, we sequenced its genome and developed a genotyping tool. We observed 2 to 10 geographically segregated sequence types at each of 5 selected loci. This new tool could be useful for case linkage and infection/contamination source tracking.

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2016 Emerging Infectious Diseases

13. Comparative sequence analysis of Cyclospora cayetanensis apicoplast genomes originating from diverse geographical regions (PubMed)

Comparative sequence analysis of Cyclospora cayetanensis apicoplast genomes originating from diverse geographical regions Cyclospora cayetanensis is an emerging coccidian parasite that causes endemic and epidemic diarrheal disease called cyclosporiasis, and this infection is associated with consumption of contaminated produce or water in developed and developing regions. Food-borne outbreaks of cyclosporiasis have occurred almost every year in the USA since the 1990s. Investigations

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2016 Parasites & vectors

14. Cyclospora

Cyclospora Cyclospora Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Cyclospora Cyclospora Aka: Cyclospora , Cyclosporiasis (...) , Cyclospora cayetanensis From Related Chapters II. Pathophysiology Coccidian in Eimeriidae family Organism: Cyclospora cayetanensis Infects the in humans Transmission via Cyclospora oocyst ingestion Endemic to some tropical and subtropical regions Fresh produce (outbreaks in U.S. and Canada) Fecal-oral transmission is unlikely Oocysts sporulate (over days to weeks) outside a host before they are once again infective Incubation: 2-14 days (1 week on average) III. Symptoms , weight loss and Low-grade fever

2016 FP Notebook

15. Draft Genome Sequences from Cyclospora cayetanensis Oocysts Purified from a Human Stool Sample (PubMed)

Draft Genome Sequences from Cyclospora cayetanensis Oocysts Purified from a Human Stool Sample The parasite Cyclospora cayetanensis causes foodborne diarrheal illness. Here, we report draft genome sequences obtained from C. cayetanensis oocysts purified from a human stool sample. The genome assembly consists of 865 contigs with a total length of 44,563,857 bases. These sequences can facilitate the development of subtyping tools to aid outbreak investigations. Copyright © 2015 Qvarnstrom et al.

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2015 Genome Announcements

16. Cyclospora infection linked to travel to Mexico, June to September 2015. (PubMed)

Cyclospora infection linked to travel to Mexico, June to September 2015. Cyclospora cayetanensis was identified in 176 returned travellers from the Riviera Maya region of Mexico between 1 June and 22 September 2015; 79 in the United Kingdom (UK) and 97 in Canada. UK cases completed a food exposure questionnaire. This increase in reported Cyclospora cases highlights risks of gastrointestinal infections through travelling, limitations in Cyclospora surveillance and the need for improved hygiene

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2015 Euro Surveillance

17. The Complete Mitochondrial Genome of the Foodborne Parasitic Pathogen Cyclospora cayetanensis (PubMed)

The Complete Mitochondrial Genome of the Foodborne Parasitic Pathogen Cyclospora cayetanensis Cyclospora cayetanensis is a human-specific coccidian parasite responsible for several food and water-related outbreaks around the world, including the most recent ones involving over 900 persons in 2013 and 2014 outbreaks in the USA. Multicopy organellar DNA such as mitochondrion genomes have been particularly informative for detection and genetic traceback analysis in other parasites. We sequenced (...) the C. cayetanensis genomic DNA obtained from stool samples from patients infected with Cyclospora in Nepal using the Illumina MiSeq platform. By bioinformatically filtering out the metagenomic reads of non-coccidian origin sequences and concentrating the reads by targeted alignment, we were able to obtain contigs containing Eimeria-like mitochondrial, apicoplastic and some chromosomal genomic fragments. A mitochondrial genomic sequence was assembled and confirmed by cloning and sequencing targeted

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2015 PloS one

18. Detection of Cyclospora in captive chimpanzees and macaques by a quantitative PCR-based mutation scanning approach (PubMed)

Detection of Cyclospora in captive chimpanzees and macaques by a quantitative PCR-based mutation scanning approach Cyclospora is a protistan parasite that causes enteritis in several species of animals including humans. The aim of this study was to investigate the presence of Cyclospora in captive non-human primates.A total of 119 faecal samples from Pan troglodytes, Macaca sylvanus, Cercopithecus cephus, Erythrocebus patas, Chlorocebus aethiops and Macaca fascicularis from a wildlife animal (...) rescue center as well as from Macaca fascicularis from an experimental primate research center were tested for the presence of Cyclospora by quantitative real-time PCR (qPCR) and single-strand conformation polymorphism (SSCP) analysis.Cyclospora was detected in three Pan troglodytes (13.6%) and nine (9.3%) Macaca fascicularis.The present study represents the first record of Cyclospora in captive primates in Europe, suggesting the presence of Cyclospora cayetanensis, which is transmissible to humans.

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2015 Parasites & vectors

19. Genetic similarities between Cyclospora cayetanensis and cecum-infecting avian Eimeria spp. in apicoplast and mitochondrial genomes (PubMed)

Genetic similarities between Cyclospora cayetanensis and cecum-infecting avian Eimeria spp. in apicoplast and mitochondrial genomes Cyclospora cayetanensis is an important cause for diarrhea in children in developing countries and foodborne outbreaks of cyclosporiasis in industrialized nations. To improve understanding of the basic biology of Cyclospora spp. and development of molecular diagnostic tools and therapeutics, we sequenced the complete apicoplast and mitochondrial genomes of C

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2015 Parasites & vectors

20. Cyclospora spp. in Drills, Bioko Island, Equatorial Guinea (PubMed)

Cyclospora spp. in Drills, Bioko Island, Equatorial Guinea 24565509 2015 01 23 2018 11 13 1080-6059 20 3 2014 Mar Emerging infectious diseases Emerging Infect. Dis. Cyclospora spp. in drills, Bioko Island, Equatorial Guinea. 510-1 10.3201/eid2003.131368 Eberhard Mark L ML Owens Jacob R JR Bishop Henry S HS de Almeida Marcos E ME da Silva Alex J AJ eng Letter United States Emerg Infect Dis 9508155 1080-6040 IM Animal Diseases epidemiology parasitology Animals Cyclospora classification genetics (...) isolation & purification Cyclosporiasis veterinary Equatorial Guinea Islands Mandrillus parasitology Bioko Island Cyclospora spp. Cyclospora cayetanensis Equatorial Guinea Mandrillus leucophaeus poensis drills parasites 2014 2 26 6 0 2014 2 26 6 0 2015 1 24 6 0 ppublish 24565509 10.3201/eid2003.131368 PMC3944859 Clin Infect Dis. 2000 Oct;31(4):1040-57 11049789 J Parasitol. 2001 Dec;87(6):1394-7 11780827 Vet Parasitol. 2003 Feb 27;111(4):297-307 12559709 MMWR Morb Mortal Wkly Rep. 2013 Nov 1;62(43):862

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2014 Emerging Infectious Diseases

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