Conference abstract

Outbreak of cholera due to consumption of “Abacha” in Oshodi local government area, Lagos State, 2016

Pan African Medical Journal - Conference Proceedings. 2018:8(52).05 Dec 2018.
doi: 10.11604/pamj-cp.2018.8.52.634

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Keywords: Cholera, Vibrio cholerae, outbreak, infectious disease, case control study
Opening ceremony

Outbreak of cholera due to consumption of “Abacha” in Oshodi local government area, Lagos State, 2016

Oluwatosin Onasanya1,&, Ebenezer Oladeinde1, Adesina Abdulsalam2, Mohammed Ibrahim3, Patrick Nguku1

1Nigeria Field Epidemiology and Laboratory Training Programme, Abuja, Nigeria, 2Epidemiology Unit, Ministry of Health, Lagos, Nigeria, 3Department of Community Medicine, Ahmadu Bello University, Zaria, Nigeria

&Corresponding author
Oluwatosin Onasanya, Nigeria Field Epidemiology and Laboratory Training Programme, Asokoro, Abuja, Nigeria

Abstract

Introduction: cholera is a highly infectious disease caused by Vibrio cholerae. On 19th of August suspected outbreak of cholera was reported in Oshodi Isolo Local Government Area (LGA), Ogun State. We investigated to establish the occurrence of an outbreak and determine the risk factors for spread of the disease.

Methods: a case control study was carried out. We reviewed medical records to identify cases. We used a semi-structured questionnaire to obtain information on demography, clinical history, symptoms and exposure factors. We collected stool specimens, food sample (Abacha) and water specimens for analysis. We analyzed for presence of Vibrio cholerae. We performed bivariate and multivariable analysis to assess the association of risk factors.

Results: a total of 37 cases were identified with 5 deaths (attack rate of 7.32/100,000 and case fatality rate of 11.4%). Age group mostly affected were individuals < 10 years. Of the 37 cases and 74 controls, 21 (52.3%) and 46 (62.2%) were females. Mean age for cases and controls was 20.5 years (SD = 19) and 38.8 years (SD = 15.6), respectively. Vibrio cholerae was isolated from two of the stool samples. Protective factors were hand washing with soap and water before eating (OR = 0.3; Confidence Interval (CI) 95%: 0.1 - 0.7) and hand washing with soap and water after using the toilet (OR = 0.3, CI 95%: 0.1 - 0.6).

Conclusion: health education with emphasis on the importance of hand washing with soap and water and environmental hygiene were conducted. Sanitary inspection was recommended to the local authorities.