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13 Μαρ 2024 · Anaerobic bacteria are the predominant cultivable and noncultivable bacteria in the human body and can be recovered from infections at virtually all anatomic sites, although the frequency of recovery is highly variable.
- Stephen B Calderwood, MD
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- Stephen B Calderwood, MD
Anaerobic gram-positive cocci of clinical significance are found in three gram-positive genera (Peptostreptococcus, Gemella, and Streptococcus) and one gram-negative genus (Veillonella). There are other genera of anaerobic cocci, but they are rarely isolated from clinical specimens.
There are three anaerobic gram-negative cocci genera: Veillonella, Acidaminococcus and Megasphaera spp. There are two described species of Veillonella and only one each of the other two genera. Veillonella spp. is the most common of the three genera and is part of the normal flora of the mouth, vagina and the small intestine.
Clues suggesting anaerobic infection include foul-smelling discharge, proximity of infection to mucosal surfaces, abscess formation, necrosis and gas in tissues, septic thrombophlebitis, various distinctive clinical pictures (e.g., actinomycosis, gas gangrene), and results of a Gram stain of clinical specimens.
24 Απρ 2023 · Objectives: Identify the etiology of anaerobic infections. Review the various clinical manifestations of anaerobic infections, Describe the management options available for anaerobic infections.
The following anaerobes are accountable for the majority (>90%) of clinical infections: Gram-negative rods (Bacteroides/Parabacteroides spp., Prevotella spp., Porphyromonas spp., Fusobacterium spp., Bilophila spp., and Sutterella spp.), Gram-positive spore-forming (Clostridium spp.) and non-spore-forming (Actinomyces spp., Bifidobacterium spp ...
1 Ιαν 2016 · Agents effective against Gram-negative enteric bacilli (e.g., aminoglycoside, a fluoroquinolone) or an antipseudomonal cephalosporin (e.g., cefepime) are often added to metronidazole for treatment of intra-abdominal infection.
