I had a DNA-B-AB test done recently and it came back at 424, clearly above the reference score. I am 72 years old and no doctor is able to tell me what it means. I know from research that it is used in children to determine strep/rheumatic fever but what does it mean for someone my age? ( I had rheumatic fever when I was five.) They did a strep test and that was negative. marshab1940
The high titers indicate a Streptococcal group A infection. Besides rheumatic fever and acute glomerulonephritis, it can cause pyoderma. Other tests like Antistreptolysin O titer and a bacterial culture will help in correlating this result.
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