Atypical Microorganisms

Question 1

Biphasic Developmental Cycle of Chlamydia

Infectious Form

mnemonics: “EI”

Answer 1

Elementary Body

Question 2

Biphasic Developmental Cycle of Chlamydia

Reprodroductive Form

mnemonics: “RR”

Answer 2

Reticulate Body

Question 3

Chlamydia and Chlamydophila spp.

Answer 3

C. trachomatis
C. pneumoniae
C. psittaci

Question 4

Infection caused of C. trachomatis **serotype A, B, C **

Answer 4

Trachoma (Blindess)

Question 5

Infection caused by C. trachomatis serotype D

Answer 5

Inclusion conjunctivitis

Question 6

Infection caused by C. trachomatis serotype LI, L2, L3

Answer 6

Lymphpogranuloma venerelium (LMV)

a sexually transmitted disease

Question 7

Diagnostic Test for Lymphogranuloma venerium

Answer 7

Frie skin Test

Question 8

TWAR strain (Tawain Acute respiratory)

acute lower respiratory disease similr to M. penumoniae

Answer 8

C. pneumoniae

Question 9

Infection of C. psittaci

mnemonics: OP hi PSITTACI

Answer 9

Psittacosis (Parrot fever)
Ornithodosis

Question 10

Only Chlamydia with Glycogen inclusion body and susceptible to Sulfonamide

Answer 10

C. trachomatis

Question 11

Inclusion body in C. trachomatis

Answer 11

Halberstadter prowazek bodies

Question 12

Inclusion body in C. psittaci

Answer 12

Levinthal-cole-lillie bodies

Question 13

Most common Cell Culture method of Chlamydia

Answer 13

McCoy cells

Question 14

Molecular Testing of Chlamydia

Answer 14

NAAT

Question 15

Cell culture of Ricketssia

Answer 15

Yolk sac of embryonated egg

Question 16

Transmission of Ricketssia

Answer 16

Orthropod vectors

except: Q fever (aerosols)

Question 17

Rocky Mountain Spotted Fever (RMSF)

Answer 17

R. ricketsii

Question 18

Murine Typhus/Endemic Typhus

Answer 18

R. typhi

Question 19

Epidemic Typhus/Brill Zinzzer Disease

Answer 19

R. prowazekki

Question 20

Scrub Typhus

Answer 20

Orentia tsutsugamushi

Question 21

Ricketsial pox

Answer 21

R. akari

Question 22

Q fever

Answer 22

Coxellia burnetti

Question 23

Trench Fever

Answer 23

Bartonella quintana

Question 24

Vector of Epidemic Typus

Answer 24

Human louse

Question 25

Vector of Scrub Typhus

Answer 25

Chigger

Question 26

Ricketssial infections transmitted by Ticks

Answer 26

R. rickettsia
R. siberica
R. autralis
R. conori

Question 27

Agglutination in OX-K only

Answer 27

Scrub typhus (O. tsutsugamushi)

Question 28

Agglutination in OX-2, OX-19

Answer 28

R. rickettsia (RMSF)
R. typhi (Murine/Endemic typhus)
R. prowazeki (Epidemic typhus)

Question 29

Source of OX-2 & OX-19

Answer 29

P. vulgaris

Question 30

Source of OX-K

mnemonics: K mabilis

Answer 30

P. mirabilis

Question 31

General Characteristics of Mycoplasma

Answer 31

No cell wall
Smallest “Mollicutes”
Contains and require Sterol for growth

Question 32

Eaton’s agent

Answer 32

Mycoplasma pneumonia

Question 33

Infection caused by M. pnuemoniae

Answer 33

Primary atypical pneumonia/Walking pneumonia

Question 34

Colony morphology of M. pneumoniae

Answer 34

Fried-egg appearance

Question 35

Antibody in PAP

Answer 35

Cold antibody (IgM) with anti-I specificity

Question 36

Infection caused by M. hominis

Answer 36

Post partum fever

Question 37

Colony morphology of M. hominis

Answer 37

LARGE fried-egg

Question 38

Infection caused by Ureaplasma urealyticum

Answer 38

Nongonococcal urethritis

Question 39

T-strain

Answer 39

Ureaplasma urealyticum

Question 40

Colony morphology of Ureaplasma urealyticum

Answer 40

TINY fried-egg

Question 41

Oraya fever

Answer 41

Bartonella bacilliformis

Question 42

Cat scratch Fever

Answer 42

Bartonella hanselae