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Epidemiological features of an outbreak of gastroenteritis/cholera in Katsina, Northern Nigeria

Published online by Cambridge University Press:  19 October 2009

J. U. Umoh ,
A. A. Adesiyun ,
J. O. Adekeye  and
M. Nadarajah
J. U. Umoh
Affiliation:
Departments of Veterinary Public Health and Preventive Medicine, Ahmadu Bello University, Zaria, Nigeria
A. A. Adesiyun
Affiliation:
Departments of Veterinary Public Health and Preventive Medicine, Ahmadu Bello University, Zaria, Nigeria
J. O. Adekeye
Affiliation:
Veterinary Microbiology and Pathology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
M. Nadarajah
Affiliation:
Government Health Centre, Katsina, Nigeria
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In April 1982, Katsina, in Northern Nigeria, was affected by an outbreak of gastroenteritis associated with Vibrio cholerae serotype ‘Ogawa’ and 662 patients were admitted to the Katsina General Hospital during a 16-week period. The outbreak affected all ages and both sexes and all parts of the town and its immediate surroundings except the Government Residential Area (GRA). The overall case fatality rate was 7·7%. Male specific case fatality and female specific case fatality rates were 9·7 and 6·2% respectively. ‘Adults’ and those in the 11–20 and 21–30 age groups accounted for most of the cases. The epidemic curve was of a propagated and protracted nature. About 51·7% of all the patients spent between 2 and 5 days in the hospital. A similar pattern was observed for all age groups regardless of sex. Cholera vibrio ‘Ogawa’, Shigella spp., Salmonella spp., Proteus spp. and Escherichia coli were isolated from 16 patients. All well-water samples obtained from the compounds of the cases were contaminated with MPN/100 ml index ranging from 540 to greater than 2400. All samples were positive for faecal coliforms. Salmonella spp., Shigella spp., Proteus spp. and non-0, group 1 (non-0 1) V. cholerae were isolated. Water sellers probably facilitated the spread of the outbreak.

Type
Research Article
Information
Journal of Hygiene , Volume 91 , Issue 1 , August 1983 , pp. 101 - 111
Copyright
Copyright © Cambridge University Press 1983

References

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