Answer:
The answer is b) streptococcal infection
Explanation:
The presence of high fever with general malaise, dysphagia, skin rash, reddening of the throat mucosa with multiple pustules accompanied by stiff joint pain allow us to conclude that it is a bacterial infection caused by group A hemolytic streptoccocus; who also presents within the personal history, having been in contact with hemolytic group A streptococcus. His diagnosis is confirmed by the positive streptococcus culture. You should continue with the intake of antibiotic and laboratory control.