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Assessing the risk factors of cholera epidemic in the Buea Health District of Cameroon.

Abstract：

BACKGROUND:Cholera is an acute diarrheal disease caused by the bacterium, Vibrio cholerae. A cholera epidemic occurred in Cameroon in 2010. After a cholera-free period at the end of 2010, new cases started appearing in early 2011. The disease affected 23,152 people and killed 843, with the South West Region registering 336 cases and 13 deaths. Hence, we assessed the risk factors of cholera epidemic in the Buea Health District to provide evidence-based cholera guidelines. METHODS:We conducted an unmatched case-control study. Cases were identified from health facility records and controls were neighbours of the cases in the same community. We interviewed 135 participants on socio-economic, household hygiene, food and water exposures practices using a semi-structured questionnaire. Data was analyzed using STATA. Fisher exact test and logistic regression were computed. P < 0.05 was considered to be statistically significant. RESULTS:The 135 participants included 34 (25.2 %) cholera cases and 101 (74.8 %) controls. More females [78 (57.8 %)] participated in the study. Ages ranged from 1 year 3 months to 72 years; with a mean of 29.86 (±14.51) years. The cholera attack rate was 0.03 % with no fatality. Most participants [129 (99.2 %)] had heard of cholera. Poor hygienic practices [77 (59.2 %)] and contaminated water sources [54 (41.5 %)] were the main reported transmission routes of cholera. Good hygienic practices [108 (83.1 %)] were the main preventive methods of cholera in both cases [23 (76.6 %)] and controls [85 (85.0 %)]. Logistic regression analysis showed age below 21 years (OR = 1.72, 95 % CI: 0.73-4.06, p = 0.251), eating outside the home (OR = 1.06, CI: 0.46-2.43, p = 1.00) and poor food preservation method (OR = 9.20, CI: 3.67-23.08, p < 0.0001) were independent risk factors of cholera. Also, irregular water supply (OR = 0.66, 95 % CI: 0.30-1.43, p = 0.320), poor kitchen facility (OR = 0.60, CI: 0.16-2.23, p = 0.560), lack of home toilet (OR = 0.69, CI: 0.25-1.86, p = 0.490), and education below tertiary (OR = 0.87, 95 % CI: 0.36-2.11, p = 0.818) were independent protective factors for the occurrence of cholera. CONCLUSION:There was a good knowledge of cholera among participants. Poor food preservation method was a significant independent risk factor of cholera. Improvement in hygiene and sanitation conditions and water infrastructural development is crucial to combating the epidemic.

journal_name

BMC Public Health

journal_title

BMC public health

authors

Nsagha DS,Atashili J,Fon PN,Tanue EA,Ayima CW,Kibu OD

doi

10.1186/s12889-015-2485-8

subject

Has Abstract

pub_date

2015-11-14 00:00:00

pages

1128

issn

1471-2458

pii

10.1186/s12889-015-2485-8

journal_volume

pub_type

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Assessing the risk factors of cholera epidemic in the Buea Health District of Cameroon.