| molecular characterization of hepatitis a virus isolates from environmental and clinical samples in greece. | hepatitis a virus (hav) strains detected in environmental and clinical samples were analysed to characterize the genotypes of hav circulating in greece. fifty (50) sewage samples were collected from patras (south-western greece) and alexandroupolis (north-eastern greece) from 2007 until 2009, accordingly. the clinical samples derived from an hav outbreak involved populations from three neighbouring prefectures of north-eastern greece (xanthi, rodopi, and evros). hav particles were detected by ne ... | 2010 | 20846383 |