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The carrier food-handler and non-typhoid salmonellosis

Published online by Cambridge University Press:  19 October 2009

J. G. Cruickshank  and
T. J. Humphrey
J. G. Cruickshank
Affiliation:
Public Health LaboratoryChurch Lane, Heavilree, Exeter EX2 5AD
T. J. Humphrey
Affiliation:
Public Health LaboratoryChurch Lane, Heavilree, Exeter EX2 5AD
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The number of reported cases of food poisoning and food-borne disease continues to increase in most countries. The published figures are recognized as being only a small fraction of the true total and the problem is clearly both very large and international.

Of the variety of micro-organisms responsible for outbreaks, Salmonella spp. are by far the most frequently incriminated and in the United Kingdom these organisms cause over 90% of cases (Epidemiology, 1986). The almost universal presence of these organisms in certain common foods, their ability to grow in a wide variety of foodstuffs over a substantial temperature range, the ease with which dissemination occurs from person to person and the prolonged period of excretion following recovery are the properties which, taken together, distinguish Salmonella spp. from other food-poisoning organisms. It is because of these characteristics that salmonellas are really the only food-poisoning organisms in which human beings as carriers pose potential problems as sources of outbreaks. This review is, therefore, confined to a consideration of the practical significance of the faecal carriage of salmonellas by asymptomatic food handlers, to an evaluation of the degree of risk, if any, that such a person may pose and to an assessment as to whether the time and money devoted to the investigation and exclusion of such persons is well spent.

Type
Special Article
Information
Epidemiology & Infection , Volume 98 , Issue 3 , June 1987 , pp. 223 - 230
Copyright
Copyright © Cambridge University Press 1987

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