Do you treat complicated pneumonia with a drained empyema longer if Streptococcus anginosus is cultured, either in isolation or with other organisms, compared to cases in which it is not?   

Targeted antimicrobial therapy for any bacterial etiology of an empyema will be individualized for each patient but a general duration of 4-6 weeks. I would not consider strep anginosus differently in this regard. What I am looking for is adequacy of drainage with clinical improvement. Radiograph...