Retrospective study of the occurrence of Cyclospora cayetanensis at Clinical Hospital of the University of São Paulo Medical School, SP

Gonçalves, Elenice Messias do Nascimento; Uemura, Iaiko Horroiva; Castilho, Vera Lúcia Pagliusi; Corbett, Carlos Eduardo Pereira

doi:10.1590/s0037-86822005000400009

Cited by 12 publications

(5 citation statements)

References 20 publications

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“…29 In a hospital in Brazil, the prevalence of Cyclospora cases was 0.3%; 71.4% were females and case-patients had a median age of 34 years. 30 In Nepal, 6,562 stools samples from five medical units were examined for Cyclospora. These units included a pediatric hospital, a rural health center, a health clinic (expatriate clientele), and a tropical disease research center.…”

Section: Discussionmentioning

confidence: 99%

Cyclospora cayetanensis in a Pediatric Hospital in Morelia, México

Orozco-Mosqueda¹,

Martínez-Loya²,

Ortega³

2014

The American Journal of Tropical Medicine and Hygiene

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Abstract. Cyclospora cayetanensis, a coccidian parasite, can cause gastrointestinal illness in humans and is characterized by watery and persistent diarrhea and abdominal pain. Cyclosporiasis has been associated with traveler's diarrhea. The infection is acquired through food and waterborne transmission, particularly by consumption of contaminated fresh fruits and vegetables. In the present study, stool samples from 8,877 children were examined for ova and parasites at the Pediatric Hospital of Morelia in Michoacán, Mexico, during 2000Mexico, during -2009. Sixty children (0.67%) had Cyclospora in their stools. Diarrhea (45.8%), abdominal pain (39.6%), and vomiting (18.8%) were the most frequent symptoms of cases with cyclosporiasis. Most of the cases (93.3%) were observed during June-August, the rainy season. In 45 children, Cyclospora was the only parasitic pathogen detected (75%); 15 children were co-infected with commensal, pathogenic, or both groups of parasites. Our findings suggest that C. cayetanensis is endemic to Michoacán and shows characteristically temporal patterns.

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Section: Discussionmentioning

confidence: 99%

Cyclospora cayetanensis in a Pediatric Hospital in Morelia, México

Orozco-Mosqueda¹,

Martínez-Loya²,

Ortega³

2014

The American Journal of Tropical Medicine and Hygiene

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“…Modified Ziehl–Neelsen acid-fast staining is recommended for the detection of Cyclospora oocysts (Brennan et al ., 1996; Clarke and McIntyre, 1996). Some other staining methods, such as (modified) Kinyoun acid-fast staining (Gonçalves et al ., 2005; Hussein, 2007; Behera et al ., 2008; Dillingham et al ., 2009; Bhandari et al ., 2015), trichrome staining (Turgay et al ., 2007; Al-Megrin, 2010), carbol fuchsin staining (Alakpa et al ., 2002; Chacín-Bonilla et al ., 2007), (modified) safranin staining (Visvesvara et al ., 1997) and lactophenol cotton blue staining (Parija et al ., 2003), have been used in the past to identify Cyclospora oocysts in faecal smears, with variable degree of sensitivity and specificity. However, these morphology-based detection methods need more parasites burden, and may lead to frequent false positive results or false negatives.…”

Section: Detection Methodsmentioning

confidence: 99%

Cyclospora cayetanensis infection in humans: biological characteristics, clinical features, epidemiology, detection method and treatment

Wang

Chen

et al. 2019

Parasitology

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Cyclospora cayetanensis, a coccidian parasite that causes protracted and relapsing gastroenteritis, has a short recorded history. At least 54 countries have documented C. cayetanensis infections and 13 of them have recorded cyclosporiasis outbreaks. Cyclospora cayetanensis infections are commonly reported in developing countries with low-socioeconomic levels or in endemic areas, although large outbreaks have also been documented in developed countries. The overall C. cayetanensis prevalence in humans worldwide is 3.55%. Among susceptible populations, the highest prevalence has been documented in immunocompetent individuals with diarrhea. Infections are markedly seasonal, occurring in the rainy season or summer. Cyclospora cayetanensis or Cyclospora-like organisms have also been detected in food, water, soil and some other animals. Detection methods based on oocyst morphology, staining and molecular testing have been developed. Treatment with trimethoprim–sulfamethoxazole (TMP–SMX) effectively cures C. cayetanensis infection, whereas ciprofloxacin is less effective than TMP–SMX, but is suitable for patients who cannot tolerate co-trimoxazole. Here, we review the biological characteristics, clinical features, epidemiology, detection methods and treatment of C. cayetanensis in humans, and assess some risk factors for infection with this pathogen.

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“…Cyclospora infections have also been described in Venezuela (34-36), Brazil (3,73), Colombia (17), Cuba (53,124,130), and Argentina (185) ( Table 2).…”

Section: Epidemiologymentioning

confidence: 99%

Update on Cyclospora cayetanensis , a Food-Borne and Waterborne Parasite

2010

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SUMMARY The coccidian parasite Cyclospora cayetanensis is recognized as an emerging pathogen that causes protracted diarrhea in humans. The first cases of Cyclospora infection were reported in the late 1970s and were observed among expatriates and travelers in regions where infections are endemic. Since then, Cyclospora has been considered a cause of traveler's diarrhea. Epidemiological investigations were reported and examined in areas of endemicity even before the true identity of Cyclospora was elucidated. Cyclospora was fully characterized in the early 1990s, but it was not until the 1995 Cyclospora outbreak in the United States and Canada that it caught the attention of the public and physicians. The biology, clinical presentation, epidemiology, diagnosis, treatment, and control of cyclosporiasis are reviewed, with a focus on diagnostic assays currently being used for clinical and environmental samples. Challenges and limitations in working with Cyclospora are also discussed.

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Retrospective study of the occurrence of Cyclospora cayetanensis at Clinical Hospital of the University of São Paulo Medical School, SP

Abstract: Cyclospora cayetanensis causes watery diarrhea in tropical countries, among travelers and after ingestion of contaminated

Cited by 12 publications

References 20 publications

Cyclospora cayetanensis in a Pediatric Hospital in Morelia, México

Cyclospora cayetanensis in a Pediatric Hospital in Morelia, México

Cyclospora cayetanensis infection in humans: biological characteristics, clinical features, epidemiology, detection method and treatment

Update on Cyclospora cayetanensis , a Food-Borne and Waterborne Parasite

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