期刊
TRENDS IN MICROBIOLOGY
卷 25, 期 11, 页码 919-931出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tim.2017.05.013
关键词
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资金
- National Institutes of Health [R01AI100989, R21AI125907, R01AI112619]
- NIH training grant [T32 AI07509]
Group B streptococcus (GBS) or Streptococcus agalactiae is a beta-hemolytic, Gram-positive bacterium that is a leading cause of neonatal infections. GBS commonly colonizes the lower gastrointestinal and genital tracts and, during pregnancy, neonates are at risk of infection. Although intrapartum antibiotic prophylaxis during labor and delivery has decreased the incidence of early-onset neonatal infection, these measures do not prevent ascending infection that can occur earlier in pregnancy leading to preterm births, stillbirths, or late-onset neonatal infections. Prevention of GBS infection in pregnancy is complex and is likely influenced by multiple factors, including pathogenicity, host factors, vaginal microbiome, false-negative screening, and/or changes in antibiotic resistance. A deeper understanding of the mechanisms of GBS infections during pregnancy will facilitate the development of novel therapeutics and vaccines. Here, we summarize and discuss important advancements in our understanding of GBS vaginal colonization, ascending infection, and preterm birth.
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