Antibiotic Use: The Crystal Ball for Predicting Antibiotic Resistance

ther for the individual patient or for the community at large. In a variation of this theme, Vanderkooi et al. [1], in this issue of Clinical Infectious Diseases, have tried to identify risk factors, including previous antibiotic treatment, predictive of antibiotic resistance in invasive S. pneumoniae infections. The authors suggest that information about patient history and previous antibiotic use can help in choosing more-appropriate empirical therapy for pneumococcal infections. The investigators, who examined >3000 invasive pneumococcal infections in the Toronto area