Strep B

Strep B

The Group B Streptococcus (GBS) is a Gram-positive bacteria and one of the most common cause of life-threatening infections in newborns. The symptoms of a GBS infection in infants during their first week of life may include but are not limited to: grunting sounds, increased heart – and respiration rates, fever, pneumonia and in rare cases meningitis.
An infected newborn will need treatment with antibiotics. Up to one third of pregnant women carry GBS in the rectum or vagina. Screening for GBS is therefore important. Guidelines recommended by the Center for Disease Control and Prevention (CDC) and some European countries, such as Spain and Belgium, are very similar and do recommend a routine GBS screening test between the 35th and 37th week of pregnancy. It will take 24 – 48 hours to obtain a result with standard culture methods. Also PCR may be used to diagnose a GBS infection however this is a long lasting and costly method as well. This delay in result may prohibit the physician from diagnosing and treating the infection in a timely and efficient manner. The Strep B Antigen test is a rapid and sensitive immunochromatographic assay for GBS antigen screening using vaginal swab specimens. Time to result is less than 20 minutes and can therefore be used to screen pregnant women in real time during labor which is of a great advantage as GBS is a transient infection which means that a pregnant woman tested negative during the 37th week may be tested positive during labor and vice versa.

 

 

 

 

 

 

 

 

 

REF D-STB-S23 / 0545_K20: each kit contains 20 tests
Guaranteed shelf life: 12 months
Storage conditions: 2-30°C

INTERPRETATION

POSITIVE RESULT

When in the test (T1) and the control (C)
colored bands appear the sample is GBS positive.

 

NEGATIVE RESULT

When only one blue band appears in the control (C)
zone the sample is GBS negative.

 


INVALID RESULTS

When there is no band visible in the control (C)
zone the test is invalid and should be repeated
with a new device.