The result of a study of hepatitis D virus genotypes
VIRUS
Patient blood (261 samples) positive for HBsAg and anti-HDVAg ELISA were received from the following regions: Taraz, Chimkent, Almaty and Almaty region, Kyzyl-Orda, Pavlodar, Aktobe, Oskemen, Aktau, Atyrau, South Kazakhstan region.In total, out of 261 samples, 256 samples (98%) were PCR positive and genotyped. Comparison and phylogenetic analysis of the nucleotide sequences of PCR products of HDV isolates showed that they all belonged to genotype 1 (Fig. 
Phylogenetic tree for HBV in Kazakhstan
Phylogenetic analysis of HDV isolates from the Republic of Kazakhstan, together with isolates and strains of the virus, presented in the international GenBank database. All Kazakhstani isolates are included in one common HDV-1 cluster