Hi westy, I declined the strep B test with my second pg after doing some research. I can't remember the exact data, but the risk of complications from Strep B to your baby, if you do have the bacteria, are about 1 in 4000. Strep b bacteria can occur naturally in healthy vaginas, and you can test postive for the bacteria and then negative again 48 hours later. A few hospitals no longer do the test as routine. If your waters break and 24 hours later you are still in labour, they administer ab's a matter of routine anyway, and that's the time when strep is most dangerous.

All that is from memory, but i think it's fairly accurate. Have a look around and do some research- i think there might be some articles on the main BB site? If you test positive, you do have a drip, which canlimit your movement in labour and lead to other intervention.