Neisseria spp & Moraxella catarrhalis Flashcards
All of Neisseria are catalas(+) except:
N. elongata & N. bacilliformis
TRUE or FALSE: Neisseria cannot grow on BAP
True
What are the special requirements for growth of Neisseria spp?
X and V factors
Cysteine
Iron
Virulence factor that attach to tissues and permit exchange of genetic material
Pili (fimbriae)
Which cell membrane protein blocks host bactericidal action against the organism?
Reduction modified protein (Protein III)
Also known as “clap”
Gonorrhea
This disease in women may cause sterility, ectopic pregnancy, salpingitis or perihepatitis (Fitz-Hugh-Curtis Syndrome)
Pelvic inflammatory disease (PID)
What N. meningitidis serotype is common in the United States?
C & Y
What is the 2nd most common cause of meningitis among persons aged 2-18?
N. meningitidis
Common symptoms of this disease are fever, purpura, petechial skin rash, thrombosis, and DIC
Meningococcemia
This is characterized by hemorrhaging in the adrenal glands caused by N. meningitidis infection
Waterhouse-Friedrichsen syndrome
What are the preferred swabs in collecting specimens for N. gonorrhoeae?
Dacron or rayon
What would be the medium for Neisseria if direct plating is not possible?
Amie’s
What media is used in identifying carbohydrate utilization among Neisseria sp?
Cystine Trypticase Soy Agar Base
TRUE or FALSE: In specimen collection for N. meningitidis, adding charcoal or 1.2% gelatin on SPS will reverse its inhibitory effects.
True
3rd most common cause of acute otitis media and sinusitis in children
Moraxella catarrhalis
Description/appearance of M. catarrhalis on culture media
Honey puck, wagon wheel
TRUE or FALSE: M. catarrhalis ferments glucose.
False
M. catarrhalis is asaccharolytic
Can be differentiated from N. gonorrhoeae by its susceptibility to colistin
N. cinerea
Neisseria sp with yellow pigment on culture media
N. flavescens
What Neisseria sp is found in the airways of dolphins?
N. mucosa
What Neisseria sp is normal flora in dogs?
N. weaveri
