Gemella morbillorum-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Gemella morbillorum in Gram staining of culture microscopy

Introduction Gemella morbillorum is a gram-positive bacterium, typically found in the human mouth, throat, and respiratory tract. It occasionally causes infections, particularly in immunocompromised individuals or those with underlying health conditions. Common infections include endocarditis, bacteremia, and abscesses. Notably, it can lead to serious complications …

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Aeromonas salmonicida- Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Aeromonas salmocida growth on MacConkey agar of sputum culture

Introduction Aeromonas salmonicida is a notorious bacterium primarily targeting fish, causing the deadly disease known as furunculosis. Typically found in freshwater and marine environments, it poses a significant threat to aquaculture industries worldwide. This bacterium spreads quickly, particularly in crowded conditions like those found in …

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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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Leuconostoc mesenteroides-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Leuconostoc mesenteroides in wet mount of culture microscopy at a magnification of 1600X

Introduction Leuconostoc mesenteroides is a species of lactic acid bacteria that plays a significant role in food fermentation and preservation. It is characterized by its ability to convert sugars into lactic acid, a process that enhances the shelf life and safety of many foods. This …

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Morganella morganii- Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Morganella morganii on CLED agar of Urine Culture

Introduction Morganella morganii is a species of gram-negative bacteria belonging to the family Enterobacteriaceae. This bacterium is named after the American bacteriologist, Thomas J. Morgan. It is commonly found in various environments, including soil, water, and the gastrointestinal tracts of humans and animals. While it …

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Archaea-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Archaea, pronounced “ahr-kee-uh,” are a fascinating and diverse group of microorganisms that belong to the domain of life known as Archaea. They represent one of the three major domains of life, with the other two being Bacteria and Eukarya. They are distinct from both …

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Micrococcus-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Micrococcus luteus growth on Muller-Hinton agar (MHA)

Introduction Micrococcus is a genus of bacteria that belongs to the family Micrococcaceae. These bacteria are Gram-positive, spherical or cocci-shaped, and typically occur in pairs, tetrads, or irregular clusters. Micrococcus species are commonly found in various environments, including soil, water, air, and on the skin …

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Serratia liquefaciens: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Serratia liquefaciens and Klebsiella pneumoniae growth on CLED agar of Urine Culture

Introduction Serratia liquefaciens is a species of Gram-negative, rod-shaped bacteria belonging to the genus Serratia. This bacterium is known for its diverse distribution in various environmental niches, including water, soil, plants, and human-related habitats. It has also been associated with clinical infections in humans, making …

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