In this report, we describe the case of a 64-year-old male patient, with no 
history of alcohol consumption, who presented the Osler's triad, which is the 
association of endocarditis, pneumonia, and meningitis caused by a single agent. 
This syndrome is called Austrian syndrome, when the infection is caused by 
Streptococcus pneumoniae. We discuss the clinical manifestations, the 
pathophysiology, and the therapeutic approach to this condition. Given the 
rarity of the condition and its high morbidity and mortality, the importance of 
an early diagnosis and an appropriate treatment to reduce the complications 
associated with this disease will be emphasized.