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.
Thalassemia is an inherited (i.e., passed from parents to children through genes) blood disorder caused when the body doesnât make enough of a protein called hemoglobin, an important part of red blood cells.halassemia is an inherited (i.e., passed from parents to children through genes) blood disorder caused when the body doesnât make enough of a protein called hemoglobin, an important part of red blood cells.