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In October 2012 a hepatitis A HA outbreak with 83 laboratory-confirmed cases occurred in Lower Saxony Primary outbreak cases were identified as people with laboratory

In October 2012, a hepatitis A (HA) outbreak with 83 laboratory-confirmed cases occurred in Lower Saxony. Primary outbreak cases were identified as people with laboratory-confirmed HA and symptom onset between 8 October and 12 November 2012, residing in or visiting the affected districts. Fifty (50) primary cases and 52 controls matched for age and sex were enrolled. Eighty-two percent (82%) of cases and 60% of controls consumed products from a particular bakery.

q1.What is this study design?

·         Cross-sectional

·         Prospective cohort

·         Retrospective cohort

·         Case-control

Apr 11 2020 View more View Less

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