Author/Authors :
Sadeh، Maryam نويسنده Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, IR Iran , , Firouzi، Roya نويسنده Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, IR Iran , , Derakhshandeh ، Abdollah نويسنده Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran , , Bagher Khalili، Mohammad نويسنده School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran , , Kong، Fanrong نويسنده Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR-Pathology West, Westmead Hospital, University of Sydney, New South Wales 2145, Australia , , Kudinha، Timothy نويسنده Charles Sturt University, New South Wales, Australia ,
Abstract :
Streptococcus agalactiae (Group B streptococcus, GBS) that colonize the vaginas of pregnant women may occasionally cause neonatal infections. It is one of the most common causes of sepsis and meningitis in neonates and of invasive diseases in pregnant women. It can also cause infectious disease among immunocompromised individuals. The distribution of capsular serotypes and genotypes varies over time and by geographic era. The serotyping and genotyping data of GBS in Iranian pregnant and non-pregnant women seems very limited. The aim of this study was to investigate the GBS molecular capsular serotype and genotype distribution of pregnant and non-pregnant carrier women at Yazd university hospital, in Iran. In this cross-sectional study, a total of 100 GBS strains isolated from 237 pregnant and 413 non-pregnant women were investigated for molecular capsular serotypes and surface protein genes using the multiplex PCR assay. The Chi-square method was used for statistical analysis. Out of 650 samples, 100 (15.4%) were identified as GBS, with a predominance of capsular serotypes III (50%) [III-1 (49), III-3 (1)], followed by II (25%), Ia (12%), V (11%), and Ib (2%), which was similar with another study conducted in Tehran, Iran, but they had no serotype Ia in their report. The surface protein antigen genes distribution was rib (53%), epsilon (38%), alp2/3 (6%), and alpha-c (3%). The determination of serotype and surface proteins of GBS strains distribution would be relevant for the future possible formulation of a GBS vaccine.
