Web of Science: 23 cites, Scopus: 26 cites, Google Scholar: cites,
Case-control study of diarrheal disease etiology in individuals over 5 years in southwest China
Zhang, Shun-Xian
Yang, Chun-Li
Gu, Wen-Peng
Ai, Lin
Serrano Ferron, Emmanuel (Universitat Autònoma de Barcelona. Servei d'Ecopatologia de Fauna Salvatge)
Yang, Pin
Zhou, Xia
Li, Shi-Zhu
Lv, Shan
Dang, Zhi-Sheng
Chen, Jun-Hu
Hu, Wei
Tian, Li-Guang
Chen, Jia-Xu
Zhou, Xiao-Nong

Data: 2016
Resum: Acute diarrhea is one of the major public health problems worldwide. Most of studies on acute diarrhea have been made on infants aged below 5 years and few efforts have been made to identify the etiological agents of acute diarrhea in people over five, especially in China. 271 diarrhea cases and 149 healthy controls over 5 years were recruited from four participating hospitals between June 2014 and July 2015. Each stool specimen was collected to detect a series of enteric pathogens, involving five viruses (Rotavirus group A, RVA; Norovirus, NoV; Sapovirus, SaV; Astrovirus, As; and Adenovirus, Ad), seven bacteria (diarrheagenic Escherichia coli, DEC; non-typhoidal Salmonella, NTS; Shigella spp. ; Vibrio cholera; Vibrio parahaemolyticus ; Aeromonas spp. ; and Plesiomonas spp. ) and three protozoa (Cryptosporidium spp. , Giardia lamblia, G. lamblia, and Blastocystis hominis, B. hominis). Standard microbiological and molecular methods were applied to detect these pathogens. Data was analyzed using Chi square, Fisher-exact tests and logistic regressions. The prevalence of at least one enteric pathogen was detected in 29. 2% (79/271) acute diarrhea cases and in 12. 1% (18/149) in healthy controls (p < 0. 0001). Enteric viral infections (14. 4%) were the most common in patients suffering from acute diarrhea, followed by bacteria (13. 7%) and intestinal protozoa (4. 8%). DEC (12. 5%) was the most common causative agent in diarrhea cases, followed by NoV GII (10. 0%), RVA (7. 4%) and B. hominis (4. 8%). The prevalence of co-infection was statistically higher (p = 0. 0059) in the case group (7. 7%) than in the healthy control (1. 3%). RVA-NoV GII (3. 0%) was the most common co-infection in symptomatic cases. DEC was the most predominant pathogen in diarrhea cases, but it was largely overlooked because the lack of laboratory capacities. Because of the high prevalence of co-infections, it is recommended the urgent development of alternative laboratory methods to assess polymicrobial infections. Such methodological improvements will result in a better prevention and treatment strategies to control diarrhea illness in China. The online version of this article (doi:10. 1186/s13099-016-0141-1) contains supplementary material, which is available to authorized users.
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Acute diarrhea ; Bacteria ; Virus ; Enteric protozoa ; Co-infection
Publicat a: Gut Pathogens, Vol. 8 (november 2016) , ISSN 1757-4749

DOI: 10.1186/s13099-016-0141-1
PMID: 27891182

11 p, 1.1 MB

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