Nesseria

Question 1

The two nesseria of importance

Answer 1

N. GONORRHOEAE & N. MENINGITIDIS.

Question 2

Characteristics of neisseria

Answer 2

●THEY GROW ON CHOCOLATE AGAR UNDER 3-10% CO2; GRAM –VE DIPLOCOCCI; OXIDASE +VE,

Question 3

Difference between gonorrhea and meningitis

Answer 3

N.GONORRHOEAE FERMENTS GLUCOSE ONLY BUT N. MENINGITIDIS FERMENTS GLUCOSE & MALTOSE.

N. GONORRHOEAE HAS ONE SEROTYPE ONLY WHILE N.MENINGITIDIS HAS SEVERAL, AMONG THEM A, B, C, D, W135.

N. GONORRHOEAE: SOME STRAINS ARE PENICILLIN-RESISTANT (PPNG) WHILE N. MENINGITIDIS ARE ALL SENSITIVE TO PENICILLIN.

GONOCCOCUS INHABITS THE ANO-GENITAL TRACT WHILE MENINGOCCOCUS INHABITS THE NASO-PHARYNX.

GONOCCOCUS CAUSES GONORRHOEA BUT MENINGOCCOCUS CAUSES MENINGITIS,SEPTICAEMIA, PETEACHIA RASH, MASSIVE ADRENAL HAEMORRHAGE ACCOMPANIED BY DIV COAGGLUTINATION WITH RAPIDLY FATAL OUTCOME.(WATERHOUSE-FRIDERICHSEN SYNDROME).

Question 4

Distribution of serotypes

Answer 4

A-PREVALENT IN AFRICA.
●B- ,, ,, EUROPE
●C- ,, ,, AMERICA
●D & W135- ARE EVENLY DISTRIBUTED WORLDWIDE.

Question 5

Treatment of gonococcus and meningiococcus

Answer 5

●Cephalosporins Same
●Aminoglycosides Same
●Macrolides Same
● Penicillin.

Question 6

Gonococcus has vaccine yes or no

Answer 6

No

Question 7

Meningiococcus has vaccine yes or no

Answer 7

Yes