Epidemiological and Clinical Studies About Enteropathogenic Escherichia Coli

Nakamura, Bunya; Tochihara, Keiichi; Kimura, Mikio; Morita, Kiyoshi; Sakanoue, Masamichi; Imi, Shoichiro; Ikeda, Hiroshi; Miyazaki, Masae; Yamada, Katsushi

doi:10.1111/j.1442-200x.1960.tb01598.x

Cited by 1 publication

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“…However, it is just ‘variable’ in the guideline of CDC [9]. Moreover, in the past reports, Nakamura and colleagues said it can be as long as two to 20 days, though it can be chiefly 1–5 days [7]. However, in Korea, when there is an EPEC outbreak, it is often as short as 6 hours or less.…”

Section: Discussionmentioning

confidence: 99%

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Enteropathogenic Escherichia coli Outbreak and its Incubation Period: Is it Short or Long?

Lee

Gwack

Youn

2012

Osong Public Health and Research Perspectives

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ObjectivesThe aim of this study is to determine the incubation period of enteropathogenic Escherichia coli (EPEC), which creates several outbreaks in a year in South Korea.MethodsWe reviewed all water and food-borne outbreaks data reported to the Korea Centers for Disease Control and Prevention (KCDC) from 2009 to 2010 and determined their characteristics. Through this process, we can presume the incubation period of EPEC among outbreaks in South Korea.ResultsA total of 497 water and food-borne outbreaks were reported to KCDC and 66 (13.28%) are defined as E coli-origin outbreaks. EPEC was the most common subtype of E coli, being confirmed as a causative organism in 26 outbreaks. Overall attack rate was 15.85% (range 0.9–100). The subjects were eight outbreaks that have a clear history of single exposure and we can estimate the incubation time of EPEC as minimum 0.5 hours to maximum 34.0 hours with a mean 12.9 hours (range 4.5–24.0). The cases of those cannot completely rule out the chance of multiple exposure from same source or place have minimum 1.0 hour, to a maximum of 195.5 hours and a mean 30.5 (range 22.7–61.0) hours of incubation period.ConclusionsThis serial analysis suggests that EPEC has actually shorter mean incubation period as much as 12 hours. When this period is longer than 1 day or over, then the epidemiologic investigator should consider the chance of repeated or continuous exposure by making it clear whether there is any chance of any other exposure in common.

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Section: Discussionmentioning

confidence: 99%

“…Its characteristics are relatively well defined. However, there are some controversies about the incubation period both it can be as short as 6 hours or can be as long as 6 to 10 days [7,8]. As a result, it is known that EPEC has just ‘variable’ incubation time [9].…”

Section: Introductionmentioning

confidence: 99%