title: [Etiological study on cases with viral diarrhea in Ningxia during 2011].
abstract: OBJECTIVE
  To investigate the etiological characteristics of human rotavirus (HRV), human calicivirus (HuCV), human astrovirus (HAstV) and human enteral adenovirus (HAdV) in Ningxia province during 2011.
  
  
  METHODS
  Stool specimen was collected from acute diarrhea case of Ningxia during 2011. HRV was detected by ELISA and serotype/genotype identified on those RT-PCR positive specimens. HuCV, HAstV and HAdV were detected by RT-PCR.
  
  
  RESULTS
  In this study, a total of 690 specimens were detected, with the infection rates of HRV, HuCV, HAstV and HAdV as 2.17%, 21.74%, 3.19% and 6.52%, respectively. Co-infections were found in 4.20% of all the samples being tested. Among 15 HRV positive cases, serotypes G1, G3 and P[4] were the most predominant strains.
  
  
  CONCLUSIONS
  Children who were under 2 years of age were the majority among patients infected by diarrhea viruses while HuCV was recognized as the main pathogen responsible for the viral diarrhea cases in Ningxia, 2011.
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China. Email: nx_zhanjun@126.com.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhan
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China.
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Ma
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Chen
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Yuan
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China.
authors.forename: Xuemin
authors.initials: X
authors.lastname: Ma
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Ningxia Center for Disease Control and Prevention,Yinchuan 750004, China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Hao
mesh_terms: D000260:Adenoviruses, Human / Q000302:isolation & purification; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002139:Caliciviridae / Q000302:isolation & purification; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003967:Diarrhea / Q000821:virology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D001257:Mamastrovirus / Q000302:isolation & purification; D008875:Middle Aged; D012401:Rotavirus / Q000302:isolation & purification; D055815:Young Adult