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A Gram stain of a urethral exudate showing typical intracellular Gram-negative diplococci, which is diagnostic for gonococcal urethritis [17]. Neisseria species are fastidious, Gram-negative cocci (though some species are rod-shaped and occur in pairs or short chains) that require nutrient supplementation to grow in laboratory cultures. [18]
Vaginal cytology is a microscopic examination of cells from the vaginal epithelium.In veterinary medicine, it helps differentiate the stages of the mammalian estrous cycle because the vaginal epithelium changes in response to sex hormone levels; practically, it is used to distinguish when a female canine is at a particular point in the estrous cycle. [1]
Some functions of the type IV pili include: mediating attachment to various cells and tissues, twitching motility, natural competence, microcolony formation, extensive intrastrain phase, and antigenic variation. Neisseria bacteria have also been shown to be an important factor in the early stages of canine plaque development. [2]
These pumps are proton antiporters where the antibiotic is pumped out of the cell while a proton is pumped into the cell. [9] The cell wall of N. gonorrhoeae contains porins which are holes within the cell wall in which some molecules are able to diffuse into or out of the cell membrane. This mechanism falls under the first general mechanism ...
The acidity of the dyes causes them to bind more strongly to the cell walls of the bacteria than to other cells or tissues. This results in the selective staining of only those cells that have a high density of cell wall material, such as acid-fast bacteria. [27] The Ziehl-Neelsen stain is a two step staining process. In the first step, the ...
Super-gonorrhea sounds scary. How concerned should people in the U.S. be? Antibiotic-resistant gonorrhea is rare in the U.S., but El Sahly says it’s still important to take it seriously.
Gonococcemia (also known as "Disseminated gonococcal infection" [1]) is a rare complication of mucosal Neisseria gonorrhoeae infection, or Gonorrhea, that occurs when the bacteria invade the bloodstream. [2] It is characterized by fever, tender hemorrhagic pustules on the extremities or the trunk, migratory polyarthritis, and tenosynovitis. [3]
By the time people are over the age of 50, Park says “about 1 in 5 of us has herpes type 2,” which causes genital herpes. “And then when we talk about herpes type 1, which causes oral herpes ...