Lung abscess caused by Streptococcus pneumoniae serotype 6B

Ito, Y; Toyoshima, H; Suzuki, T; Iwamoto, K; Sasano, H; Itani, H; Kondo, S; Tanigawa, M

Ito, Y (reprint author), Ise Red Cross Hosp, Dept Resp Med, 2-471 Funae, Ise, Mie 5168512, Japan.

RESPIRATORY MEDICINE CASE REPORTS, 2018; 23 (): 71

Abstract

Lung abscess has been considered to be a rare complication of pneumococcal infection, and most cases are reported to be Streptococcus pneumoniae serotype 3. A 67-year-old man presented with fever and was diagnosed to have lung abscess caused by S. pneumoniae serotype 6B. The minimal inhibitory concentration (MIC) of penicillin for the isolate was 1 mu g/mL. He was treated with high-dose intravenous sulbactam/ampicillin as definitive therapy based on susceptibility testing for S. pneumoniae and recovered successfully without surgical intervention. S. pneumoniae serotype 6B can cause lung abscess.

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