Acute Rheumatic Fever Essential criteria :Catch me or catch mine

Group A β-hemolytic streptococci

Presence of Bacteria in throat culture

A positive throat culture for group A β-hemolytic streptococci (Class I; Level of Evidence B).38A positive throat culture for group A β-hemolytic streptococci (Class I; Level of Evidence B)

Presence of Carbohydrate antigen in throat

A positive rapid group A streptococcal carbohydrate antigen test in a child whose clinical presentation suggests a high pretest probability of streptococcal pharyngitis (Class I; Level of Evidence B)

Presence of antibody in the serum

Increased or rising anti-streptolysin O titer or other streptococcal antibodies (anti-DNASE B) (Class I; Level of Evidence B). A rise in titer is better evidence than a single titer result