Bacillus

Question 1

Most pathogenic species of the Genus Bacillus

Answer 1

Bacillus Anthracis

Question 2

Morphology of Bacillus

Answer 2

Large rod shaped, Gram positive

(Bacillus anthracis forms long chains in cultures with square ends)

Question 3

Major anthrax enzootic zones

Answer 3

India, Pakistan, Africa, South America, Philippines

Question 4

What is the component of capsule of Bacillus

Answer 4

Polymers of D-glutamic acid and some polysaccharide

Question 5

What are the toxin complex or holotoxin

Answer 5

1. Edema Factor
2. Protective Antigen
3. Lethal Factor

Question 6

Net effect of Holotoxin

Answer 6

1. Kills phagocytes
2. Increase capillary cell permeability
3. Damage clotting mechanism
4. Inhibit bactericidal activity of Serum

Question 7

Forms of Anthrax

Answer 7

1. Localized
2. Generalized

Question 8

What form of anthrax is a wound on skin, cutaneous, malignant carbuncle or pustule

Answer 8

Localized Anthrax

Question 9

This form of anthrax is an airborne spore; woolsorter’s disease

Answer 9

Generalized Anthrax

Question 10

Symptoms of Anthrax

Answer 10

Edema, Shock, Hemorrhage before death

Question 11

This diagnosis stains the organism blue and capsules pink

Answer 11

McFadyean’s stain

Question 12

This diagnosis detects capsular antigen

Answer 12

Agar Gel Precipitation Test

Question 13

This diagnosis results to a Medusa-Head or judge wig type

Answer 13

Ground glass-like non-hemolytic colonies on Blood Agar Plate

Question 14

Organisms grow with cell wall impairment due to

Answer 14

Presence of Penicillin

Question 15

What bacteriophage can Lyse B. anthracis

Answer 15

Gamma phage