Colonization factor antigens (CFAs) of enterotoxigenic Escherichia coli (ETEC) have been classified into several groups based on their distinct antigenicity. We describe here a PCR-based method to detect common CFAs of ETEC, which were characterized using conventional serology. This PCR assay is simple and sensitive for the detection of expressed CFA genes.

group b streptococci (gbs) or streptococcus agalactiae are members of the normal flora of the female genital tract. gbs normally colonizes the vagina in many women asymptomatically. during labor this organism may infect the newborn, leading to neonatal sepsis and meningitis. this study aimed to investigate the prevalence of group b streptococcus in pregnant women by a rapid and easy culture met...

Enrichment of cell suspension with germ cells prior to injection into recipient seminiferous tubules is of importance in spermatogonial stem cells (SSCs) transplantation. Knock-out serum replacement (KSR) has been reported to enhance the proliferation of murine SSCs and human embryonic stem cells. The aim of the present study was to investigate the effect of KSR versus fetal bovine serum (FBS) ...

Improving maternal, newborn, and child health is central to Sustainable Development Goal targets for 2030, requiring acceleration especially to prevent 5.6 million deaths around the time of birth. Infections contribute to this burden, but etiological data are limited. Group B Streptococcus (GBS) is an important perinatal pathogen, although previously focus has been primarily on liveborn childre...

background: recto-vaginal colonization of group b streptococcus (gbs) has been known as an important issue in mother and newborn’s health, which is getting frequent in developing countries. screening test have been introduced and utilized in many countries and is recommended by many researchers. however, due to lack of information in prevalence of gbs, especially in iran, there are doubts and c...

 Background: Recto-vaginal colonization of Group B streptococcus (GBS) has been known as an important issue in mother and newborn’s health, which is getting frequent in developing countries. Screening test have been introduced and utilized in many countries and is recommended by many researchers. However, due to lack of information in prevalence of GBS, especially in Iran, there are doubts and ...