Ethiopian Field Epidemiology and Laboratory Training Program (EFELTP) Compiled Body of Works in Field Epidemiology
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Date
2015-05
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Addis Abeba Universty
Abstract
Background: In Southern Nation Nationalities and Peoples' Region outbreaks of measles occur every year. On December 23/2013 the regional PHEM received a report of suspected outbreak of measles from Gedeb woreda and we conducted to verify the outbreak, identify risk factors and implement control measures to contain the outbreak.
Methods: Unmatched cases-control study was conducted enrolling 41 cases and 82 controls (1:2 ratios).The study was conducted in Gedeb Woreda, Gedeo Zone, SNNPR from December 13/2013 to January 15/2014. Data was collected using structured questionnaire and analyzed using EpiInfo 7.1.4.0 and MS Excel 2013.
Result: We identified a total of 108 cases of measles (5 laboratory confirmed and 48 epi-linked) with median age of 7years, ranging from 6 months to 16 years. The most affected age group was under five years of age (47.2%) followed by 5-9 years of age group (36.1%).The age specific attack rate was also highest in age group of under five year (185/100,000) followed by those 5-9 years of age group (132/100,000) with case fatality of 0% for all. From all measles patients 95 (88%) have no history of vaccination and only the rest 13 (12%) of the cases have history of at least one dose of measles vaccine exposure. The proportion of male 63(58%) was higher than female cases of measles [1:1.4].
Conclusion: The incidence rate of measles in Gedeb woreda was highest among children under 5 years of age (185/100,000) and it is essentially less than measles incidences recorded in different regions of the country. Sub optimal measles vaccination coverage for consecutive years resulted in increased number of susceptible population and triggered the outbreak finally.
Key words: Outbreak investigation, Measles, SNNPR
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Keywords
Outbreak investigation, Measles, SNNPR