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Published on: May 2, 2019
[Molecular and epidemiological study on viral diarrhea among infants in Lanzhou]
1First Clinical Medical College of Lanzhou University, Lanzhou 730000, China.
Insights
Viral diarrhea in children under five is common, with Rotavirus being the most frequent cause. This study highlights the need for ongoing surveillance of viral gastroenteritis in Lanzhou.
Area of Science:
- Pediatric infectious diseases
- Virology
- Epidemiology
Context:
- Viral diarrhea significantly impacts children under 5 years old.
- Understanding the distribution of common viral pathogens is crucial for public health.
- Lanzhou, China, serves as the study location for this investigation.
Purpose:
- To investigate the epidemiological characteristics of viral diarrhea in children under 5 in Lanzhou.
- To determine the prevalence and distribution of four major viral agents causing diarrhea in this age group.
Summary:
- A study of 290 children with diarrhea and 114 controls in Lanzhou identified viral agents in 60% of cases.
- Rotavirus was the most prevalent (39.31%), followed by human calicivirus (11.38%), adenovirus (10.69%), and astrovirus (4.83%).
- Rotavirus G3 and P[8] were the most common serotype and genotype, respectively.
Impact:
- The findings underscore the significant role of viral pathogens in pediatric diarrhea.
- This study emphasizes the importance of establishing long-term, systematic surveillance for viral gastroenteritis.
Objective:
To study the epidemiologic characteristics of viral diarrhea in children under 5 years old in Lanzhou, understand the four major virus in children of distribution.
Methods:
In the first hospital of Lanzhou university from Jul 2009 to Jun 2010,we collected 290 stool specimens from children with diarrhea and 114 asymptomatic controls. Rotavirus was detected by ELISA,further strain characterization was carried out by nested PCR. The human calicivirus, astrovirus, adenovirus were detected by RT-multiplex PCR and PCR.
Results:
At least one of the four viral agents was found in 60% of the specimens. Rotavirus, human calicivirus, adenovirus, and astrovirus were identified in 39.31%, 11.38%, 10.69%, and 4.83% in 290 specimens respectively. Rotavirus G3 was the most prevailing serotype, P [8] was the most common genotype. In the 114 control samples, 7 sample was positived for calicivirus, 5 samples were positived for human adenovirus and 1 sample was positived for astrovirus.
Conclusion:
The results indicated clearly the impact of viral agents causing diarrhea and the importance of long-term systematic surveillance.
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