A large outbreak of acute gastroenteritis caused by the human norovirus GII.17 strain at a university in Henan Province, China.

Background: Human noroviruses are a major cause of viral gastroenteritis and are the main etiological agents of acute gastroenteritis outbreaks. An increasing number of outbreaks and sporadic cases of norovirus have been reported in China in recent years. There was a large acute gastroenteritis outbreak at a university in Henan Province, China in the past five years.

[Investigation on distribution of Yersinia enterocolitica in Henan province between 2005 and 2011].

Objective: To investigate the distribution of Yersinia enterocolitica in Henan province from 2005 to 2011.

Methods: A total of 6700 samples of stool specimen were collected from diarrhea patients and different domestic animals between 2005 and 2011 from Zhengzhou, Suixian and Dengfeng, as well as flies and the daub specimens of raw and cooked meat products. The bacteria were isolated by cold enrichment method, analyzed by the systematic biochemistry to determine the serotypes and bio-types, and tested the virulence genes by PCR method.

[Analysis of etiological surveillance results of Shigella spp between 2009 and 2010 in Henan province].

Objective: To explore the etiologic characteristics of bacillary dysentery found in Henan province, between year 2009 and 2010.

Methods: In order to explore the distribution of bacterial types, drug susceptibility and the virulence gene carrier situation, 482 strains of Shigella isolated in Henan province between 2009 and 2010 were pathogen-detected and analyzed by serotype screening, anti microbial sensitivity test and PCR methods.

Results: The 482 isolated strains were confirmed to be Shigella by both morphological and biochemical tests.

[Effects of different frequencies of electroacupuncture on blood glucose level in impaired glucose tolerance patients].

Objective: To Investigate the clinical efficacy of electroacupuncture (EA) at different frequencies for patients with impaired glucose tolerance (IGT).

Methods: A total of 120 IGT outpatients were randomly divided into control, EA-5 Hz, EA-50 Hz, and EA-100 Hz groups (n = 30/group). EA (1 mA) was applied to bilateral Pishu (BL 20), Shenshu (BL23), Zusanli (ST 36) and Sanyinjiao (SP6) for 20 min, once daily for 60 sessions.

Prevalence and characterization of human Shigella infections in Henan Province, China, in 2006.

In 2006, 3,531 fecal samples were collected from patients with diarrhea in Henan Province, China. A total of 467 (13.2%) Shigella strains were isolated and serotyped.