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A 25-year-old female asked:

why do obgyns wait until 35 weeks inutero before testing for group b strep? can outcomes be better for baby if infection is treated before l&d?

1 doctor answer7 doctors weighed in
Dr. Jeff Livingston
Obstetrics and Gynecology 22 years experience
4 weeks : If group strep is found during the pregnancy at any time (like a urine culture) then that patient will be treated when in labor. The culture is reliable for 4 weeks. Testing at 35/36 weeks will cover for those delivering in that time frame. Gbs is passed to baby when passing though the vaginal therefore treating while the patient is in labor is correct.

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Last updated Dec 24, 2019
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