Gram Negative Cocci

Question 1

N. lactamica

Answer 1

Similar colony morphology as N. meningitidis

Question 2

N. flavescens

Answer 2

• Yellow pigmented colonies
• Asaccharolytic
• Grows on SBA and CHOC at 22C

Question 3

N. subflava

Answer 3

Subflava means “less yellow” pigment

Question 4

N. sicca

Answer 4

Colonies dry, wrinkled and breadcrumb-like (sicca in Latin means “dry”)

Question 5

N. mucosa

Answer 5

• Large, adherent, nonpigmented and very mucoid colonies (hence the name mucosa)
• Able to reduce nitrite to nitrogen gas

Question 6

Acinetobacter

Answer 6

Strict aerobes, second most common non-fermenter isolated in clinical specimens