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Published on: February 1, 2014
A new E. coli O group O158 associated with an outbreak of infantile enteritis
Insights
A special care baby unit experienced an outbreak of acute diarrhea. Escherichia coli O158 was identified as the cause in six infants, leading to three deaths.
Area of Science:
- Neonatalogy
- Infectious Disease Epidemiology
- Microbiology
Background:
- Special care baby units are vulnerable settings for infant infections.
- Acute diarrhea outbreaks pose significant risks to vulnerable neonates.
Purpose of the Study:
- To investigate an outbreak of acute diarrhea in a special care baby unit.
- To identify the causative agent of the outbreak.
Main Methods:
- Epidemiological investigation of affected infants.
- Microbiological analysis, including isolation and characterization of Escherichia coli strains.
- Serotyping of bacterial isolates to determine O and H antigens.
Main Results:
- An outbreak of acute diarrhea affected six out of thirteen infants in the unit.
- Three infants died as a consequence of the infection.
- Escherichia coli with an unidentifiable O antigen and H23 flagellar antigen was isolated from all affected infants.
- The previously unidentifiable O antigen was accepted into the international scheme as O158.
Conclusions:
- Escherichia coli O158 was identified as the causative agent of the outbreak.
- The outbreak highlights the potential severity of bacterial infections in special care baby units.
- Prompt identification and characterization of pathogens are crucial for outbreak control.
Abstract:
An outbreak of acute diarrhoea occurred amongst babies in a special care baby unit. Thirteen babies were at risk; six suffered diarrhoea and three of these died. An Escherichia coli with an unidentifiable O antigen and flagellar antigen H23 was isolated from all six cases. This O antigen has been accepted into the international scheme as O158.
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