Streptococcus agalactiae, Group B

Streptococcus agalactiae, Group B


Routine Practices

General Information

Gram positive cocci in chains, beta-hemolytic.

Common inhabitants of human gastrointestinal tract and genitourinary tract. Colonizes the maternal urogenital or GI tract in 10-30% of pregnant women.

  • Skin and soft tissue infections
  • Bacteremia
  • UTI
  • Bone and joint infections
  • Endocarditis
  • Meningitis
  • Pneumonia

Invasive neonatal infections:

  • Early onset neonatal disease (sepsis, pneumonia within the first 7 days of life)
  • Late onset disease (meningitis and sepsis between 7 days and 3 months of age)

Major cause of perinatal infections, including bacteremia, endometritis, chorioamnionitis.