MYCOBACTERIUM QUIZ

False negative Mantoux test is observed in

Advanced tuberculosis

Severe malnutrition

early tuberculosis

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Members of the genus Mycobacterium are

gram-positive

non-motile

all of these

acid-fast

TRUE ANSWER : ?
YOUR ANSWER : ?

The bacteria which cause(s) tuberculosis in man is/are

Mycobacterium tuberculosis

M africanum

M bovis

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Rough and buff colonies on LJ medium are characteristic of

M fortuitum

M bovis

M chelonei

Mycobacterium tuberculosis

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following species of Mycobacterium is positive for nitrate reduction test?

Mycobacterium tuberculosis

All of these

M fortuitum

M chelonei

TRUE ANSWER : ?
YOUR ANSWER : ?

Example of a Saprophytic bacteria is

M marinum

M xenopi

Mycobacterium chelonei

Msmegmatis

TRUE ANSWER : ?
YOUR ANSWER : ?

Humans become infected with Mycobacterium tuberculosis most frequently by

ingestion

inoculation

inhalation

contact

TRUE ANSWER : ?
YOUR ANSWER : ?

The causative agent of Buruli ulcer is

M chelonei

M ulcerarts

M marinum

M fortuitum

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following bacteria is susceptible to thiophen-2-carboxylic acid hydrazide?

M bovis

M fortuitum

M chelonei

Mycobacterium tuberculosis

TRUE ANSWER : ?
YOUR ANSWER : ?

A positive Mantoux test indicates an area of induration of

4-9 mm in diameter

None of these

1-4 mm in diameter

10 mm or more in diameter

TRUE ANSWER : ?
YOUR ANSWER : ?

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