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Corynebacterium diphtheriae [a] is a Gram-positive pathogenic bacterium that causes diphtheria. [2] It is also known as the Klebs–Löffler bacillus because it was discovered in 1884 by German bacteriologists Edwin Klebs (1834–1912) and Friedrich Löffler (1852–1915). [3] The bacteria are usually harmless unless they are infected by a ...
Infectious disease. A staphylococcal infection or staph infection is an infection caused by members of the Staphylococcus genus of bacteria. These bacteria commonly inhabit the skin and nose where they are innocuous, but may enter the body through cuts or abrasions which may be nearly invisible. Once inside the body, the bacteria may spread to ...
Diphtheria is an infection caused by the bacterium Corynebacterium diphtheriae. [2] Most infections are asymptomatic or have a mild clinical course, but in some outbreaks, the mortality rate approaches 10%. [1] Signs and symptoms may vary from mild to severe, [1] and usually start two to five days after exposure. [2]
Mucormycosis, also known as black fungus, [ 3][ 4] is a serious fungal infection that comes under fulminant fungal sinusitis, [ 11] usually in people who are immunocompromised. [ 9][ 12] It is curable only when diagnosed early. [ 11] Symptoms depend on where in the body the infection occurs. [ 13][ 14] It most commonly infects the nose, sinuses ...
Severe infections with significant swelling may cause airway obstruction by shifting/enlarging soft tissue structures (floor of mouth, tongue, etc.) or by causing dysphagia that prevents adequate clearance of saliva. This is a medical emergency and may require endonasal intubation or tracheotomy to protect one's airway.
Normal appearance of the tongue, showing a degree of visible white coating and normal irregular surface on the posterior dorsum. The most common location for mouth-related halitosis is the tongue. [10] Tongue bacteria produce malodourous compounds and fatty acids, and account for 80 to 90% of all cases of mouth-related bad breath. [11]
Oral microbiology. Thrush, a common condition caused by overgrowth of the fungus Candida albicans. Cases are characterized by growth of matted, yellow-white patches of fungus in the mouth. Oral microbiology is the study of the microorganisms (microbiota) of the oral cavity and their interactions between oral microorganisms or with the host. [1]
Pathogenic bacteria. Neisseria gonorrhoeae (small red dots) in pus from a man with a urethral discharge ( Gram stain) Pathogenic bacteria are bacteria that can cause disease. [1] This article focuses on the bacteria that are pathogenic to humans. Most species of bacteria are harmless and are often beneficial but others can cause infectious ...