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Table 2 Relationship between ASO titer and BHS infection in children on antibiotic prophylaxis for RHD

From: Throat culture positivity rate and antibiotic susceptibility pattern of beta-hemolytic streptococci in children on secondary prophylaxis for rheumatic heart disease

  ASO (titer ≥200 IU/ml) P-value
Positive Negative Total
BHS isolated 23 33 56 0.0315
BHS negative 46 131 177
Total 69 165 233