Diphtheria is pathogenic only when infected with______________? A. Beta phage B. Alfa phage C. Lambda K12 D. Delta Phage

Which of the following is an acid-fast bacillus_____________? A. Mycobacterium bacilli B. Treponema pallidum C. Neisseria gonorrhea D. All of the above

Group A B-hemolytic streptococcal infection of the pharynx may be followed in some by_____________? A. Diphtheria B. Typhoid feverC. Rheumatic fever D. Syphilis

Causative agents of Vincent’s angina_____________? A. Borrelia vincenti and fusobacterium fusiformis B. Borrelia recurrents and bateroides C. Borrelia burgoloferi and lactobacillus D. Leptospira and Treponema pallidum

A protoplast is best characterized as a bacterial cell______________? A. with a cell wall but free of a capsule B. containing a cell wall and a capsuleC. Free of a cell wall and a capsule D. Uniquely sensitive to penicillin

Which regards to temperature requirement, most pathogenic bacteria are_____________? A. PsychrophilesB. Mesophiles C. Cryophiles D. Thermophiles

One of the following is an agglutination test in the diagnosis of typhoid___________? A. Widal test B. Eleks test C. Mantoux test D. Wasserman test

Staphylococci typically occur in_________________? A. Pairs B. Chains C. TetradsD. Irregular clusters

In a patient with typhoid, diagnosis after 15 days of onset of fever is best done by_____________? A. Blood cultureB. Widal test C. Stool culture D. Urine culture

The virulence factors of Neisseria gonorrhea include all of the following except____________? A. Outer membrane proteins B. IgA ProteaseC. M-Proteins D. Pili