Under the revised Jones criteria, establishing a diagnosis of acute rheumatic fever requires supporting evidence of a preceding infection caused by Group _____ Streptococcus.
Answer
A
Explanation
The lecture specifies supporting evidence of recent **Group A streptococcal** infection as an absolute requirement. **Key takeaway:** Do not diagnose ARF from manifestations alone under this framework. **Glossary:** Antecedent: preceding or earlier in time.