Aerococcus viridans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Aerococcus viridans in Gram staining of culture

Introduction Aerococcus viridans is a gram-positive coccus that rarely infects humans. It usually inhabits hospital environments. Moreover, it exists in air and water. It causes urinary tract infections, endocarditis, and bacteremia. Additionally, it appears in various clinical specimens. Furthermore, laboratories sometimes misidentify it as viridans …

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Raoultella ornithinolytica: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Routella ornithinolytica lactose fermenting colony on MacConkey agar

Introduction Raoultella ornithinolytica is a Gram-negative, encapsulated, non-motile, rod-shaped bacterium belonging to the family Enterobacteriaceae. Originally classified under the genus Klebsiella, it has been reclassified due to its distinct biochemical properties, including the ability to metabolize ornithine. This bacterium is commonly found in water, soil, …

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