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Pronunciation: an′tē-strep-tol′i-sin

Definition: An antibody that inhibits or prevents the effects of streptolysin O elaborated by group A streptococci; the amount of antistreptolysin in the serum is frequently increased during and after streptococcal disease, and comparative titers may aid a diagnosis and prognosis.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.