Named after Victor Morax, a Swiss ophthalmologist, Moraxella is a genus of Gram-negative bacteria that belongs to the family Moraxellaceae. While some of the species are characterized by a rod-like …

Abstract Human respiratory tract infections caused by gram- negative diplococci continue to remain significant issues in health care.

Jun 17, 2025 · Moraxella catarrhalis is a gram-negative diplococcus that commonly colonizes the upper respiratory tract. It is a leading cause of otitis media in children, acute exacerbations of chronic …

Moraxella catarrhalis is a small gram-negative diplococcus that resembles the cocci of the genus Neisseria.

Explore the characteristics and significance of gram-negative diplococci, focusing on the Neisseria and Moraxella genera.

Apr 17, 2025 · Gram-negative diplococci are most commonly associated with Neisseria gonorrhoeae and Neisseria meningitidis, which are the most clinically significant organisms in this category.

Having just one membrane, the Gram-positive bacteria are also known as monoderm bacteria, while Gram-negative bacteria, having two membranes, are also known as diderm bacteria.

LOS is generally present on gram-negative pathogens (pathogenic Neisseria, Haemophi-lus, Moraxella, and Bordetella) that infect nonenteric surfaces (some Campylobacter species are the exception).

Among Gram‑negative organisms, Neisseria gonorrhoeae and N. meningitidis are kidney‑shaped diplococci that reside in neutrophils during infection. Moraxella catarrhalis is another Gram‑negative …

Jan 1, 2025 · Neisseria meningitidis and Moraxella catarrhalis are both gram-negative diplococci. Both bacteria can cause pneumonia but can be differentiated by culture. Colonies of N. meningitidis are …