Background: Rotavirus type A is the most common cause of acute gastrointestinal inflammatory in children under 5 years old, especially in age groups 6 and 36 months. Some rotavirus strains are common; seen recently in Vietnam are G1, G2, G3, G4 and G9, P4, P6 and P8. Objective: Surveillance of epidemiological characteristics of rotavirus induced diarrhea in the National Pediatric Hospital from September, 2007 to March, 2008. Subject and methods: Collection of 322 stool specimens of pediatric patients with acute diarrhea (including 213 specimens from male, 109 specimens from female), who were treated in the National Pediatric Hospital. All of these specimens were determined for causes of rotavirus with the enzyme immunoassay (EIA). Results and Conclusion: Among these 322 stool specimens, there were 195 rotavirus positive specimens, accounted for 60.56%. The rate of monthly distribution of rotavirus diarrhea from September, 2007 to March, 2008 were 76%, 56%, 62%, 61%, 64%, 56% and 44%, respectively. Number of rotavirus positive cases in male and female was 56 (26.29%) and 79 (72.48%), respectively. The rate of rotavirus positive children compared to total number of specimens with the age 0-3 months, 3-6 months, 6-12 months, 12-24 months, 24-36 months and over 36 months was 7.69%, 15.9%, 41.54%, 32.82%, 1.54% and 0.51%, respectively. The results of type identification indicated that phenotypes of 37 among 40 specimens were identified (92.5%) in which there were 5 specimens of G1P8 (12.5%), 20 specimens of G3P8 (50%), 1 specimen of G9P8 (2.5%), 2 specimens of G1Pmixed (5%), 9 specimens of G3Pmixed (22.5%), 1 specimen of G unidentified-type P8 (2.5%) and 2 specimens of G3 P unidentified-type (5%).
rotavirus ; diarrhea ; epidemiology

The study was conducted on under-five year children after introduction of anti-diarrhea program in Thanh Hãa Province. The results suggested some factors could increase the incidence of diarrhea, including custom and environmental hygiene, knowledge of mothers and baby-sitters, hygiene of food, cooking instruments and personal hygiene. Some factors can affect the incidence of diarrhea differently depended on geography: Coastal delta, highland and mountain areas. In addition, there are some factors can affect insignificantly the incidence of diarrhea in Thanh Hãa Province
Diarrhea ; Risk Factors ; epidemiology

The objective of this study was to evaluate the role of rotavirus in diarrhoeal disease of children under five years of age living in the Mekong delta area (1993-1997). ELISA method was applied for detecting rotavirus in stools. The results showed that the identification rate of rotavirus in acute diarrhea cases detected from household visits was 6.5% (32/494 specimens), in acute diarrhea cases hospitalized was 22.4% (15/67 specimens) and in persistent diarrhea cases hospitalized was 11% (10/91 specimens). Rotavirus was also identified in healthy children (0.7%). Rotavirus identification rate was higher in children under 1 year of age than in children over 1 year of age; no difference between malnourished children and normal children; higher in the dry season (November, December, January, February, March).
diarrhea ; child ; epidemiology ; rotavirus

The study showed some remarks on epidemiological characteristics and pathogens of an acute diarrhea outbreak. The outbreak including 25 patients without death occurred on some communes in Hanoi on May, 2004. V. cholerae 01 was isolated from 13/25 patients. Although it was not clear about the source of infection, the initial proof on bio-molecule showed that the outbreak occurred strain might have the same source with V. cholerae O1 isolated in 2000, 2002 and 2003 around Vietnam. In addition, the study also showed some comments and experiences on preventing outbreak
Epidemiology ; Diarrhea ; Disease Outbreaks

2455 fecal samples of acute diarrhoea children collected from National Institute of Pediatries, Hai Phong Pediatric hospital, Khanh Hoa Pediatric hospital, HoChiMinh city Pediatric hospitals No1 and No2 in the year 2002. By EIA assay, in 1042 samples (42.62%) Rotavirus was determined as positive. The virus existed around all the year, concentrated in Jan, Feb, March, Apr and July, affected commonly the children aged 3-35 months. From 154 genus of rotavirus, G type, G9 genus is the most common (90 genera). In addition, G2 (21 genera), G1 (19 genera), G4 (12 genera) and mixing types and unidentified types (12 genera) were also detected
Rotavirus ; epidemiology ; Diarrhea

From Aug 2001 to July 2002 at St Paul Hospital in Hanoi, 300 fecal samples collected from 300 diarrhoea children aged from 3 months to 5 years old were studied. Results showed that in 51,9% of cases, rotavirus was the leading cause, Escherichia coli was the second, among which addhesive strains and invasive strains of coli were the most common. In first time, toxic gene was detected in the group of intestinal hemorrhagic Escherichia coli. Shigella and Campillobacter were still the common pathologic causes of pediatric diarrhoae
Diarrhea/etiology ; Child ; Epidemiology

A study on the house holds with children under 24 months and mothers of children under 24 months has shown that the factors influenced on the risk of diarrhea depend on the care custom such as unfull breast feeding, regular sucking by bottle, early. Food stored in the room temperature for more than 2 hours, improper treatment of children feces, unhygienic laterine and water resources children with birth weight under 2500g and mother had no knowledge of diarrhea control.
diarrhea ; child ; risk factors ; epidemiology

Study 300 children with acute diarrhea treated at Saint Paul Hospital, Hanoi, the results showed that major cause was E.coli (13.7%); most common were EAEC and EIEC, followed by ETEC and EPEC, prevalence of EHEC was low (0.7%). Most of patients were under 1 year of age, and this disease common occurred in summer and autumn. Common symptoms were abdominal pain, watery and loose diarrhea; other symptoms such as fever, vomit and nausea occurred in half of patients.
Diagnosis ; Child ; Epidemiology ; Diarrhea ; Escherichia coli

China ; epidemiology ; Diarrhea ; epidemiology ; virology ; Disease Outbreaks ; Humans ; Norovirus

In this study, the data of pediatric diarrhea clinic of Gansu Provincial Maternal and Child Health Hospital from January 1, 2014 to December 31, 2018 and Tianshui First Hospital from January 1, 2015 to December 31, 2018 were collected. Standardized precipitation index (SPI) and meteorological drought composite index (MCI) were used as drought indicators. Quasi-Poisson generalized additive model was used to analyze the correlation between drought and pediatric diarrhea outpatient visits. During the study period, the dry days in Lanzhou city and Tianshui city were 298 and 379 days according to SPI-1, 303 and 398 days according to MCI, respectively. There were 57 147 and 18 703 cases of diarrhea in children aged 0-6 years in Gansu Provincial Maternal and Child Health Hospital and Tianshui First Hospital, respectively. MCI and SPI (SPI-1) based on monthly precipitation were negatively correlated with the number of pediatric diarrhea outpatients. Compared with the non-drought period, SPI-1 showed the strongest correlation between middle drought and pediatric diarrhea outpatients, with an increase of 13.4% (95%CI: 7.9%-19.3%) and 20.0% (95%CI: 12.7%-27.8%) in Lanzhou city and Tianshui city, respectively. According to MCI, the outpatients with diarrhea in Tianshui children increased by 60.5% (95%CI: 3.4%-149.0%) due to extreme drought.
Child ; Humans ; Outpatients ; Diarrhea/epidemiology* ; Cities ; China/epidemiology*