Does Moraxella grow on MacConkey Agar?

They grow well on blood agar as well as chocolate agar but not on MacConkey agar.

Is Moraxella a diplococci?

NATURE. Moraxella spp. are Gram-negative diplococci that morphologically and phenotypically resemble Neisseria spp. They are strictly aerobic, oxidase-positive, catalase-positive, DNAse-positive and asaccharolytic.

Is Moraxella catarrhalis normal flora?

Moraxella catarrhalis is part of the normal bacterial flora in the nasopharynx of children, although over the past two decades, it has emerged as a significant bacterial pathogen and not simply a commensal colonizer.

Is Moraxella catarrhalis catalase-positive?

Moraxella catarrhalis, formerly known as Branhamella catarrhalis, is a Gram-negative, aerobic, nonmotile, nonspore-forming, oxidase-positive, and catalase-positive diplococcus.

Does Moraxella catarrhalis grow on Thayer Martin?

With Moraxella catarrhalis, the solution stays red. Finally, it grows well on blood and chocolate agar and it doesn’t grow on modified Thayer-Martin agar, like other Gram-negative diplococci, such as Neisseria species.

Is Moraxella catarrhalis catalase positive?

Does Moraxella catarrhalis have endospores?

Moraxella catarrhalis is also non-motile, non-spore forming, aerobic, which means it needs oxygen to survive, and oxidase positive, which means it produces an enzyme called oxidase.

Does Moraxella catarrhalis need to be treated?

Moraxella catarrhalis is a bacterium that causes infection by sticking to a host cell. It does this using special proteins called adhesins that are on its outer membrane. Doctors usually treat M. catarrhalis infections with antibiotics, but this is becoming increasingly challenging due to antibiotic resistance.

What is Moraxella catarrhalis infection?

Infection. Moraxella catarrhalis is a gram-negative cocci that causes ear and upper and lower respiratory infections. M. catarrhalis is also known as Branhamella catarrhalis. It is the 2nd most common bacterial cause of COPD exacerbations after nontypeable Haemophilus influenzae.

Can M catarrhalis cause pneumonia in children?

Many young children have this bacteria in their noses, and it can sometimes move into the middle ear, causing infection. Pneumonia is an infection in the lungs that’s often caused by bacteria. While M. catarrhalis typically doesn’t cause pneumonia, it can in adults with weakened immune systems or chronic lung diseases.

What are the risk factors for Mycoplasma catarrhalis infection?

Adults with lung conditions, especially cystic fibrosis and chronic obstructive pulmonary disease (COPD), are also more likely to develop an M. catarrhalis infection.

What causes M catarrhalis infection in adults?

Adults with lung conditions, especially cystic fibrosis and chronic obstructive pulmonary disease (COPD), are also more likely to develop an M. catarrhalis infection. This is because chronic lung conditions make it harder for your lungs to clear out bacteria. What does it cause?

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