Microbiology Causative agent of acute rheumatic fever – A Group 'A' b-hemolytic streptococcus B Group-B b-hemolytic streptococcus C Group-C b-hemolytic streptococcus D Group-D b-hemolytic streptococcus 💡 Explanation Causative agent of acute rheumatic fever - ✓ Correct Answer: A. Group 'A' b-hemolytic streptococcus