Acute rheumatic endocarditis follows infections with:
A. alpha-hemolytic streptococci (Streptococcus viridans)
B. Group A beta-hemolytic streptococci
C. coagulase +ve Staphylococcus aureus
D. streptococcus pneumoniae
E. enterococci
The correct answer is B. Group A beta-hemolytic streptococci.
Acute rheumatic endocarditis is a complication of acute rheumatic fever (ARF), which typically follows infections with Group A beta-hemolytic streptococci (GABHS), specifically Streptococcus pyogenes.
GABHS infections, such as pharyngitis or tonsillitis, trigger an autoimmune response that can lead to ARF and subsequent rheumatic endocarditis.