Specimen Requirements


Group B Streptococcus Antigen, (S. Agalactiae)

Specimen Requirement

Cervical or vaginal swab transport media. Identify source on requisition. Beta Streptococcus Group B (Streptococcus agalactiae) will be the only organism sought and reported. Since routine genital cultures include Beta Streptococcus Group B, this need not be ordered separately when a routine genital culture is ordered.


Conventional culture technique


Room Temp: 72 hours

Reference Range

By Report.


3 days

Clinical Use

Aids in the detection of Beta Streptococcus Group B (Streptococcus agalactiae). Group B Streptococci can be one of the most significant pathogens in the neonatal period.

Test Code

Contact Lab