| assessing the risk of a community outbreak of hepatitis a on blood safety in latvia, 2008. | post-transfusion hepatitis a virus (hav) infection worldwide is considered a sporadic event. an outbreak of hav infection occurred in latvia between the end of 2007 and throughout 2008 with more than 2,800 confirmed cases reported over a 13-month period (incidence of 123 per 100,000 population). the majority of reported hav infection cases were in people over 18 years of age and in people living in the capitalcity, riga. we estimated that the crude risk for hav contamination of whole blood suppl ... | 2010 | 20739001 |