Neisseria is the only pathogenic gram-negative cocci (precisely diplococci). Two species of Neisseria cause disease in humans; Neisseria meningitidis and Neisseria gonorrhoeae. Human beings are...
Tag: Gram Negative Cocci
Neisseria meningitidis is the bacteria that causes meningitis, a severe infection of the meninges—the thin lining covering the brain and spinal cord. Meningitis can lead to severe illness and, if...
The shape of a bacterium is determined by its rigid cell wall. Bacteria that lack a cell wall (Mycoplasma and L-forms) display a great diversity of unusual shapes. Bacteria having various shapes are...