Fig. 1
From: Hepatitis a virus genotypes and strains from an endemic area of Europe, Bulgaria 2012–2014
Distribution of molecularly characterized hepatitis A cases according to age categories and size of urban centers. The distribution in three age groups (Children: 0–12 years; Teens: >12 to 19 years; Adults: > 19 years) according to the size of urban centers (Large and medium centers: >30,000 inhabitants, range 44,000–1,203,000; Small centers: <30,000 inhabitants, range 132–27,000) is reported