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Updated: Aug 13, 2026

Human Placental and Decidual Organ Cultures to Study Infections at the Maternal-fetal Interface
Published on: July 21, 2016
[Virological and bacteriological study of materno-fetal infections in Brazzaville]
Serological study of serum samples taken from pregnant women and umbilical cord and bacteriological study of vaginal secretions samples and cerebrospinal fluid (CSF) showed in mothers: T. pallidum antibody (Tp ab) 9%, Rubella virus antibody (Ru ab) 85%; HBs Ag 16%, HIV antibody (HIV ab) 4%. Microbe culture showed: S. aureus 18%, Streptococcus sp. 9%, E. coli 4.9%, Klebsiella 3.6%, Citrobacter 3.6%, Candida albicans 15%; direct immunofluorescence: Chlamydia 26%. In infants: IgG umbilical cord: Tp ab 4.8%, Rub ab: 80.6%, HIV ab 4/4, Hbs Ag 11.3% Microbe culture in CSF: global frequency: 5.1%; Streptococcus sp. 31.8%, Staphylococcus 20.5%, enterobacteriaceae 27.2%, other Gram negative bacilli 20.5%.
Serological study of serum samples taken from pregnant women and umbilical cord and bacteriological study of vaginal secretions samples and cerebrospinal fluid (CSF) showed in mothers: T. pallidum antibody (Tp ab) 9%, Rubella virus antibody (Ru ab) 85%; HBs Ag 16%, HIV antibody (HIV ab) 4%. Microbe culture showed: S. aureus 18%, Streptococcus sp. 9%, E. coli 4.9%, Klebsiella 3.6%, Citrobacter 3.6%, Candida albicans 15%; direct immunofluorescence: Chlamydia 26%. In infants: IgG umbilical cord: Tp ab 4.8%, Rub ab: 80.6%, HIV ab 4/4, Hbs Ag 11.3% Microbe culture in CSF: global frequency: 5.1%; Streptococcus sp. 31.8%, Staphylococcus 20.5%, enterobacteriaceae 27.2%, other Gram negative bacilli 20.5%.

