MICRO ORGANISMS QUIZ

Culture of tubercle bacilli may be positive if number of bacteria in the specimen is

as few as 125-200 per ml

as few as 5-9 per ml

as few as 1-4 per ml

as few as 10-100 per ml

TRUE ANSWER : ?
YOUR ANSWER : ?

The bacteria which is microaerophilic on primary isolation, is

Mycobacterium tuberculosis

none of these

M fortuitum

M bovis

TRUE ANSWER : ?
YOUR ANSWER : ?

The causative agent of Buruli ulcer is

M chelonei

M ulcerarts

M fortuitum

M marinum

TRUE ANSWER : ?
YOUR ANSWER : ?

False negative Mantoux test is observed in

All of these

Severe malnutrition

early tuberculosis

Advanced tuberculosis

TRUE ANSWER : ?
YOUR ANSWER : ?

Rough and buff colonies on LJ medium are characteristic of

M chelonei

Mycobacterium tuberculosis

M fortuitum

M bovis

TRUE ANSWER : ?
YOUR ANSWER : ?

A positive Mantoux test indicates an area of induration of

None of these

10 mm or more in diameter

4-9 mm in diameter

1-4 mm in diameter

TRUE ANSWER : ?
YOUR ANSWER : ?

Humans become infected with Mycobacterium tuberculosis most frequently by

contact

inhalation

inoculation

ingestion

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 : ?

Which of the phage types of Mycobacterium tuberculosis occurs most frequently in India?

Type A

Type C

Type I

Type B

TRUE ANSWER : ?
YOUR ANSWER : ?

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

M bovis

All of these

Mycobacterium tuberculosis

M africanum

TRUE ANSWER : ?
YOUR ANSWER : ?

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