Microbiology

Question 1

NRI patient, Mississippi river valley travel, fever, cough, weight loss, CXR- granuloma, Sputum- dimorphic fungi

Answer 1

Histoplasma capsulatum
(mimics TB)

Question 2

North American blastomycosis is caused by

Answer 2

Blastomyces dermatitidis

Question 3

Desert Rheumatism is caused by

Answer 3

Coccidiodes immitis

Question 4

Lutz mycosis is caused by

Answer 4

Paracoccidiodes brasiliensis

Question 5

Scientific names of
1. Blood fluke
2. Chinese liver fluke
3. Sheep liver fluke
4. Large intestinal fluke
5. Oriental lung fluke

Answer 5

1. Schistosoma sp (aka bladder fluke)
2. Clonorchis sinensis
3. Fasciola hepatica
4. Fasciolopsis buskii
5. Paragonimus westermani

Question 6

Organisms with operculated egg

Answer 6

Diphylobothrium latum
All trematodes except schistosoma

Question 7

Organisms with quadrinucleate cyst

Answer 7

Giardia lamblia
Entamoeba histolytica

Question 8

Diagnostic and infective stage of Giardia lamblia

Answer 8

Quadrinucleate cyst

Question 9

Cyst form of Cyclospora cayetanensis

Answer 9

Cyst contains 2 spores. Each spore contains 2 sporozoites

Question 10

Cyst form of Cryptosporidium parvum

Answer 10

Each oocyst contains 4 sporozoites

Question 11

Elliptical shaped cyst is seen in

Answer 11

Cystisospora bellii

Question 12

Pt with unpasteurized dairy product intake
Fever, malaise, HSM
Blood culture: gram negative coccobacillus
Organism?
Appearance on microscopy?

Answer 12

Brucella melitensis
Safety pin appearance

Question 13

Key words associated with Tularemia

Answer 13

Rabbit/ tick bite
Ulceroglandular disease
Francisella tularensis

Question 14

Pasteurella multocida causes

Answer 14

Cat bite abscess

Question 15

Bartonella henselae causes

Answer 15

Cat scratch disease

Question 16

Causes of prosthetic heart valve associated infective endocarditis

Answer 16

Staph epidermidis
Strept viridans (alpha hemolytic)

Question 17

Painless ulcer on genitalia of man. Darkfield microscopy– spiral shaped organisms
Which test involved in serological scar?

Answer 17

TPPA/ TPHA/ TPI/ FTA- Abs

Question 18

Typical white spots in buccal cavity asso with measles?

Answer 18

Koplik spots

Question 19

Coxsackievirus causes?

Answer 19

Herpangina, Myocarditis (by B)

Question 20

Echovirus causes?

Answer 20

Meningitis

Question 21

Defects associated with–
1. Wiskott Aldrich syndrome
2. Common variable immunodeficiency
3. C/c granulomatous disease

Answer 21

1. T cell/ B cell defect
2. Decreased Ig
3. Decreased phagocytes

Question 22

16 y/o boy, h/o eczema, recurrent abscess by S. aureus found to have high serum IgE levels. Diagnosis?

Answer 22

Hyper IgE / Job’s syndrome

Question 23

Organisms belonging to Bioterrorism category A

Answer 23

Small pox
Tularemia
Plague
Anthrax
Dengue
Botulinum
Ebola

Question 24

Organisms belonging to cat C of bioterrorism agents

Answer 24

MERS
SARS
among others

Question 25

COVID 19 belongs to which category of bioterrorism agents?

Answer 25

No category-- not considered bioterrorism agent