Neisseria spp & Moraxella catarrhalis

Question 1

All of Neisseria are catalas(+) except:

Answer 1

N. elongata & N. bacilliformis

Question 2

TRUE or FALSE: Neisseria cannot grow on BAP

Answer 2

True

Question 3

What are the special requirements for growth of Neisseria spp?

Answer 3

X and V factors
Cysteine
Iron

Question 4

Virulence factor that attach to tissues and permit exchange of genetic material

Answer 4

Pili (fimbriae)

Question 5

Which cell membrane protein blocks host bactericidal action against the organism?

Answer 5

Reduction modified protein (Protein III)

Question 6

Also known as “clap”

Answer 6

Gonorrhea

Question 7

This disease in women may cause sterility, ectopic pregnancy, salpingitis or perihepatitis (Fitz-Hugh-Curtis Syndrome)

Answer 7

Pelvic inflammatory disease (PID)

Question 8

What N. meningitidis serotype is common in the United States?

Answer 8

C & Y

Question 9

What is the 2nd most common cause of meningitis among persons aged 2-18?

Answer 9

N. meningitidis

Question 10

Common symptoms of this disease are fever, purpura, petechial skin rash, thrombosis, and DIC

Answer 10

Meningococcemia

Question 11

This is characterized by hemorrhaging in the adrenal glands caused by N. meningitidis infection

Answer 11

Waterhouse-Friedrichsen syndrome

Question 12

What are the preferred swabs in collecting specimens for N. gonorrhoeae?

Answer 12

Dacron or rayon

Question 13

What would be the medium for Neisseria if direct plating is not possible?

Answer 13

Amie’s

Question 14

What media is used in identifying carbohydrate utilization among Neisseria sp?

Answer 14

Cystine Trypticase Soy Agar Base

Question 15

TRUE or FALSE: In specimen collection for N. meningitidis, adding charcoal or 1.2% gelatin on SPS will reverse its inhibitory effects.

Answer 15

True

Question 16

3rd most common cause of acute otitis media and sinusitis in children

Answer 16

Moraxella catarrhalis

Question 17

Description/appearance of M. catarrhalis on culture media

Answer 17

Honey puck, wagon wheel

Question 18

TRUE or FALSE: M. catarrhalis ferments glucose.

Answer 18

False

M. catarrhalis is asaccharolytic

Question 19

Can be differentiated from N. gonorrhoeae by its susceptibility to colistin

Answer 19

N. cinerea

Question 20

Neisseria sp with yellow pigment on culture media

Answer 20

N. flavescens

Question 21

What Neisseria sp is found in the airways of dolphins?

Answer 21

N. mucosa

Question 22

What Neisseria sp is normal flora in dogs?

Answer 22

N. weaveri