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Introduction Enterococcus is a genus of Gram-positive bacteria that are part of the normal microbial flora of humans and animals. They are facultative anaerobes, meaning they can survive in both the presence and absence of oxygen. Enterococcus species are known for their ability to thrive …
Introduction Antimicrobial Susceptibility Testing (AST) is a laboratory technique used to assess the effectiveness of antimicrobial agents, such as antibiotics, against specific microorganisms. The aim of AST is to determine the susceptibility or resistance of a microorganism to different antimicrobial drugs. This information is crucial …
Introduction and Composition Tryptone Soy Broth (TSB) is a versatile and widely used liquid medium in microbiology. It is a nutrient-rich broth that supports the growth of a wide range of bacteria, making it suitable for general cultivation, enumeration, and maintenance of bacterial cultures. TSB …
Introduction Shigella sonnei is a bacterium that is responsible for causing shigellosis, a type of bacterial infection affecting the digestive system. Shigellosis is commonly characterized by symptoms such as diarrhea, abdominal pain, fever, and occasionally, bloody stools. It is a specific serotype of the Shigella …
Introduction Streptococcus oralis is a gram-positive bacterium that belongs to the genus Streptococcus. It is a commensal bacterium that commonly inhabits the human oral cavity, along with other oral streptococci. S. oralis is considered a part of the normal oral microbiota and can be found …
Introduction The E-test, also known as the Epsilometer test, is a laboratory technique used to determine the antimicrobial susceptibility of microorganisms, particularly bacteria. It is a quantitative method that provides information about the minimum inhibitory concentration (MIC) of an antimicrobial agent against a specific organism. …
Introduction Citrobacter freundii is a Gram-negative bacterium belonging to the Enterobacteriaceae family. It is commonly found in the environment, including soil, water, and the intestinal tracts of humans and animals. Citrobacter freundii is an opportunistic pathogen, meaning it can cause infections in individuals with weakened …
Introduction Morganella is a genus of bacteria belonging to the family Enterobacteriaceae. The genus was named after the bacteriologist John Morgan. Morganella species are gram-negative, rod-shaped bacteria that are commonly found in the environment, including soil, water, and sewage. One species of particular interest is …