<prompt> Acute bacterial prostatitis most common organism involved is:Streptococcal viridansPepto streptococciEscherichia coliStreptococci agalactiae  <response>: Ans. c Escherichia coliRef Bailey and Love 27th Edition, Page 1474Most common organisms causing Acute Prostatitis: E. coli Most common in 80 Staph, aureus Staph. Albus Streptococcus faecalis Neisseria Gonorrhea ChlamydiaInfection spread via hematogenous source or via acute urinary infectionClinical features: Fever with chills and rigors and back ache, urine contains threads in voided sample, rectal irritation, etc. Treatment involves antibiotics that penetrates prostate like trimethoprim and ciprofloxacin 