Paul G. Auwaerter, M.D. PATHOGENS PATHOGENS PATHOGENS Leading causes: Staphylococcus aureus,including MRSA (accounts for ~70%) Gram-negative bacilli (infrequent) Pseudomonas aeruginosamost common GN in the U.S.[2] Mixed infections with anaerobes ...
Comment: Literature review of patients hospitalized with cultures were positive in 4.6% of 607 cases, of which Group A strep accounted for 65%, S. aureus for 14% and Gram negative bacilli 11%. The conclusion is that these results show most cellulitis cases are caused by Group A strep.Ratin...
Given that most splenic abscesses are secondary to bacteremia or fungemia (e.g., associated withendocarditis,UTI,pancreatitis, GI tract, etc.), the likely pathogen(s) are determined by the original focus. Gram-negative bacilli, especiallyE. coli,Salmonellaspp,Klebsiella pneumoniae,Pseudomonas aerugi...
For hospitalized or recently antibiotic-treated people, add Gram negatives to the consideration. Anaerobic bacteria: B. melaninogenicus, Fusobacterium nucleatum, Peptostreptococcus, and others Hospital-acquired bacteria: Staphylococcus aureus, Streptococcus species and Gram-negative bacilli There's more to ...
Mycobacterium tuberculosis Brucellaspecies Post-neurosurgical procedure:S. aureus,coagulase-negative staphylococci, Gram-negative bacilli (includingPseudomonas), fungi 2012-2013: contaminated compounding pharmacy corticosteroid spinal injection PredominantlyExserohilumspp.(see module for details) ...
aureus, coagulase-negative staphylococci, Gram-negative bacilli (including Pseudomonas), fungi 2012-2013: contaminated compounding pharmacy corticosteroid spinal injection Predominantly Exserohilum spp. (see module for details) Aspergillus Other fungal species Immunocompromised host (AIDS, steroids, transplants...
Septicemia (cause by Gram-negative bacilli) Gynecologic infections (in combination with anaerobic coverage) Nebulized aztreonam is indicated for treatment of respiratory symptoms in cystic fibrosis (CF patients with FEV1 of 25-75% of predicted) with P. aeruginosa NON-FDA APPROVED USES NON-FDA APPROVE...
Non-motile Gram-negative bacillus; may appear as slender rods or coccobacilli. [Fig 1andFig 2] Usually recovered in anaerobic cultures. Previously described as aBacteroidesspecies, reclassified under the genusPrevotella.[14] Slow grower, some species require > 48 hrs incubation. ...
Non-motile Gram-negative bacillus; may appear as slender rods or coccobacilli. [Fig 1andFig 2] Usually recovered in anaerobic cultures. Previously described as aBacteroidesspecies, reclassified under the genusPrevotella.[14] Slow grower, some species require > 48 hrs incubation. ...
Cross-resistance with macrolides and streptogramins can occur, often referred to as phenotype MLSB. Theermgene (ermA orermC) encodes methylation of the 23S rRNA binding site shared among the three drug classes. This resistance may be inducible or constitutive. When inducible, the organism (most...