Cyclospora cayetanensis infections among diarrheal outpatients in Shanghai: a retrospective case study / 医学前沿
Frontiers of Medicine
;
(4): 98-103, 2018.
Article
in English
| WPRIM
| ID: wpr-772723
ABSTRACT
Cyclospora cayetanensis is a foodborne and waterborne pathogen that causes endemic and epidemic human diarrhea worldwide. A few epidemiological studies regarding C. cayetanensis infections in China have been conducted. During 2013, a total of 291 stool specimens were collected from patients with diarrhea at a hospital in urban Shanghai. C. cayetanensis was not detected in any of the stool specimens by traditional microscopy, whereas five stool specimens (1.72%, 5/291) were positive by PCR. These positive cases confirmed by molecular technology were all in the adult group (mean age 27.8 years; 2.94%, 5/170) with watery diarrhea. Marked infection occurred in the rainy season of May and July. Sequence and phylogenetic analyses of the partial 18S rRNA genes of C. cayetanensis isolated showed intra-species diversity of this parasite. This study showed, for the first time, that C. cayetanensis is a pathogen in outpatients with diarrhea in Shanghai, albeit at a low level. However, the transmission dynamics of this parasite in these patients remain uncertain.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Outpatients
/
Parasitology
/
Phylogeny
/
RNA, Ribosomal, 18S
/
China
/
Polymerase Chain Reaction
/
Epidemiology
/
Retrospective Studies
/
Cyclospora
/
Cyclosporiasis
Type of study:
Observational study
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
English
Journal:
Frontiers of Medicine
Year:
2018
Type:
Article
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