Causative organism of rheumatic fever ?
High-Yield Explanation
Ans. is 'a' i.e., Group A StreptococciRheumatic fever :?Rheumatic fever (RF) is an acute, immunologically mediated, multisystem inflammatory disease classically occurring a few weeks after an episode of group A streptococcal pharyngitis; occasionally, RF can follow streptococcal infections at other sites, such as the skin.