| hepatitis b virus genotypes from european origin explains the high endemicity found in some areas from southern brazil. | southern brazil is considered an area of low hepatitis b endemicity, but some areas of higher endemicity have been described in the southwest of paraná and santa catarina states. the aim of this study was to evaluate viral genotypes circulating throughout paraná state. pcr amplification and partial sequencing of the s gene was carried out in 228 samples from hbsag positive candidate blood donors. samples have been collected in seven different counties (cascavel, curitiba, foz do iguaçu, francisc ... | 2012 | 22538208 |