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May 20, 2024 · Under gram staining, C. difficile cells are gram-positive and show optimum growth on blood agar at human body temperatures in the absence of oxygen. When stressed, the bacteria produce spores that are able to tolerate extreme conditions that the active bacteria cannot tolerate.
May 15, 2024 · E. coli, ( Escherichia coli ), species of bacterium that normally inhabits the stomach and intestines. When E. coli is consumed in contaminated water, milk, or food or is transmitted through the bite of a fly or other insect, it can cause gastrointestinal illness. Mutations can lead to strains that cause diarrhea by giving off toxins, invading ...
1 day ago · Candida albicans is an opportunistic pathogenic yeast [5] that is a common member of the human gut flora. It can also survive outside the human body. [6] [7] It is detected in the gastrointestinal tract and mouth in 40–60% of healthy adults. [8] [9] It is usually a commensal organism, but it can become pathogenic in immunocompromised ...
6 days ago · A Gram stain is first performed to guide the way, which should show typical Gram-positive bacteria, cocci, in clusters. Second, the isolate is cultured on mannitol salt agar , which is a selective medium with 7.5% NaCl that allows S. aureus to grow, producing yellow-colored colonies as a result of mannitol fermentation and subsequent drop in ...
5 days ago · E. coli bacteria undergoing binary fission. The cell wall is dividing resulting in the formation of two cells. Janice Carr/CDC. Most prokaryotes reproduce asexually through a process called binary fission. During binary fission, the single DNA molecule replicates and the original cell is divided into two identical cells. Steps of Binary Fission
May 18, 2024 · The three major types of cells in the blood are red blood cells, white blood cells, and platelets . Red blood cells determine blood type and are responsible for transporting oxygen. White blood cells are immune system cells that destroy pathogens and provide immunity. Platelets help blood clot to prevent excessive blood loss due to broken or ...
6 days ago · Medical condition Gout Other names Arthritis uratica, or Podagra when of the foot Video summary (script). Leading with The Gout (James Gillray, 1799), which depicts the pain of the artist's gout as a demon or dragon. Specialty Rheumatology Symptoms Joint pain, swelling, and redness Usual onset Older males, post- menopausal women Causes Uric acid Risk factors Diet high in meat or beer, being ...
