Gram negative cocci

Question 1

Describe Moraxella catarrhalis in terms of morphology, major illnesses associated w/ the microbe

Answer 1

Morphology: G negative cocci, slightly elongated

Illness: 3rd most common cause of upper respiratory tract infections

Question 2

Describe Neisseria meningitidis in terms of morphology, culture virulence, major illnesses associated w/ the microbe and prevention

Answer 2

Morphology: G negative cocci in pairs, identified in CSF

Virulence: capsule, DIC

Illness:

• # 2 cause of meningitis #1 in school children
• can cause 2ndary tissue necrosis

Prevention: Meningococcal conjugate vaccine/Group B meningococcal vaccine

Question 3

Describe in terms of morphology, virulence, major illnesses associated w/ the microbe (include signs/symptoms), transmission route, and issues w/ treatment

Answer 3

Morphology: G negative cocci in pairs, need enriched media, increased CO2, and no cooling

Virulence: attachment

Illness: Gonorhea

• male=urethritis
• female= pelvic inflammatory dz and/or endocervix
• septic arthritis

Transmission:STD

Treatment: need Beta lactamase test