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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K. pneumoniae-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

K. pneumoniae-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Klebsiella pneumoniae, often abbreviated as K. pneumoniae, is a species of Gram-negative, rod-shaped bacteria commonly found in the human digestive tract, as well as in soil and water. While it is a part of the normal flora in the human gut, K. pneumoniae can …

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Staphylococcus epidermidis- Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Staphylococcus epidermidis Colony Characteristics on Blood agar

 Introduction Staphylococcus epidermidis, often referred to as S. epidermidis, is a type of bacteria that belongs to the Staphylococcus genus. It is commonly found on the skin and mucous membranes of humans and is considered a part of the normal microbiota, which means it is …

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Wound Infections- Introduction, Types, Sign and Symptoms, Common Pathogens, Laboratory Diagnosis, Treatment, Prevention and Control, and Keynotes

Introduction Wound infections refer to the invasion and multiplication of pathogenic microorganisms, such as bacteria, in a wound or injury site. These infections can occur after various types of wounds, including surgical incisions, traumatic injuries, burns, and chronic ulcers. Wound infections are a common complication …

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Stenotrophomonas maltophilia: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Mucoid lactose fermenting (MLF) colony of Klebsiella pneumoniae and non-lactose fermenting (NLF) colony of Stenotrophomonas maltophilia on MacConkey medium of clinical specimen-sputum culture

Introduction Stenotrophomonas maltophilia is a Gram-negative bacterium that belongs to the class Gammaproteobacteria. It is an opportunistic pathogen known for its ability to cause infections, particularly in individuals with compromised immune systems or underlying health conditions. The bacterium was initially considered to be of low …

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Tuberculosis: Introduction, Types, Sign and Symptoms, Causative Agent, Laboratory Diagnosis, Treatment, Prevention and Control, and Keynotes

Introduction Tuberculosis (TB) is a contagious bacterial infection that primarily affects the lungs, although it can also impact other parts of the body. It is caused by Mycobacterium tuberculosis, a type of bacteria that spreads through the air when an infected person coughs, sneezes, or …

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Bloodstream Infections(BSI): Introduction, Types, Sign and Symptoms, Common Pathogens, Laboratory Diagnosis, Treatment, Prevention and Control, and Keynotes

Introduction Bloodstream infections (BSI), also known as bacteremia or septicemia, are serious medical conditions characterized by the presence of bacteria or other pathogens in the bloodstream. This condition can lead to severe health complications and even be life-threatening if not promptly diagnosed and treated. Bloodstream …

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