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Published on: November 7, 2018
Prospective study of etiologic agents of acute gastroenteritis outbreaks in child care centers
Whitney H Lyman1, Joan F Walsh, Jonathan B Kotch
1Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC, USA.
Insights
Viruses frequently cause acute gastroenteritis (AGE) outbreaks in childcare centers. Environmental contamination is common during these outbreaks, highlighting the need for effective disinfection strategies against multiple viruses.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Acute gastroenteritis (AGE) outbreaks are common in childcare settings.
- Identifying the causative agents of AGE in children is crucial for implementing effective control measures.
Purpose of the Study:
- To investigate the specific viral etiologies of acute gastroenteritis outbreaks in North Carolina childcare centers.
- To assess the role of environmental contamination in the transmission of gastroenteritis viruses within these facilities.
Main Methods:
- A prospective study was conducted on 29 outbreaks of AGE in childcare centers.
- Stool specimens and environmental swabs were analyzed for common gastroenteritis viruses (adenovirus, astrovirus, norovirus, rotavirus, sapovirus) using PCR and sequencing.
Main Results:
- Single viruses caused 45% of the evaluated outbreaks, with rotavirus group A being the most frequent (17%).
- Multiple viruses were detected in 10% of outbreaks.
- Environmental contamination was detected in 59% of outbreaks, with viruses matching those found in stool samples in 45% of cases.
Conclusions:
- Viral pathogens are significant contributors to acute gastroenteritis outbreaks in childcare settings.
- Widespread environmental contamination observed during outbreaks underscores the importance of disinfection protocols.
Objective:
To investigate the etiology of outbreaks of acute gastroenteritis (AGE) in children attending childcare centers (CCCs) in North Carolina between October 2005 and March 2007.
Study Design:
In this prospective study of outbreaks of AGE in CCCs, stool specimens from symptomatic children and environmental surface swabs were tested for adenovirus group F, astrovirus, norovirus (NoV), rotavirus group A, and sapovirus using real-time and conventional reverse transcription-polymerase chain reaction assays, and viruses were genotyped by sequencing.
Results:
A total of 29 AGE outbreaks were evaluated, of which 13 (45%) were caused by a single virus, including rotavirus group A (17%), NoV (10%), astrovirus (10%), and sapovirus (7%). Multiple viruses were detected in 3 outbreaks (10%). Environmental swabs from 13 of 22 outbreaks (59%) tested positive for at least 1 virus and confirmed the findings of the same virus in the fecal specimens for 10 of the outbreaks (45%).
Conclusions:
This study confirms that viruses are major causes of AGE outbreak in CCCs. Our finding of widespread environmental contamination during such outbreaks suggests the need to study the effectiveness of current surface disinfectants against multiple gastroenteritis viruses in CCCs.
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