If you are diagnosed with strep, you will stop being contagious approximately 24 hours after starting an antibiotic. Antibiotics should help alleviate your symptoms within one or two days, although in some people the symptoms may last up to a week.
Testing can be done before a baby is born to find out if it has thalassemia and determine how severe it may be. Tests used to diagnose thalassemia in fetuses include: 1  Chorionic villus sampling. 2  This test is usually done around the 11th week of pregnancy and involves removing a tiny piece of the placenta for evaluation.3  Amniocentesis.f your doctor suspects your child has thalassemia, he or she may confirm a diagnosis using blood tests. If your child has thalassemia, blood tests may reveal: 1  A low level of red blood cells. 2  Smaller than expected red blood cells.
Your doctor may check other blood tests to determine if you have iron deficiency or another cause for your anemia. Even if you don't have anemia at the beginning of your pregnancy, your doctor will most likely recommend that you get another blood test to check for anemia in your second or third trimester.