Final

Question 1

Infections that can lead to Guillain-Barré Syndrome?

Answer 1

Campylobacter jejuni, EBV (HHV-4), Zika virus

Question 2

Bacteroides fragilis

Answer 2

G-ve anaerobe causing deep infections (bowel via enterotoxin, or brain abscesses in the frontal and temporal lobes)

Question 3

Toxoplasma gondii

Answer 3

Ring enhancing lesions in an immunocompromised pt, transmitted vertically and/or via cat feces

Question 4

What causes cerebral malaria?

Answer 4

Plasmodium falciparum

Question 5

Method the WHO has used to decrease malaria?

Answer 5

ITNs

Question 6

Erysipelas (well defined raised plaques) commonly caused but what?

Answer 6

β-hemolytic Strep (GAS and GBS) most common, then S. aureus

Question 7

Coagulase -ve Strep found on what types of fomites?

Answer 7

Indwelling devices (catheters, prosthetics, etc)

Question 8

Infection that has sulfur granules?

Answer 8

Actinomyes (non acid-fast, obligate anaerobe)

Question 9

Rickettsial rash

Answer 9

Starts at wrists/ankles and spreads inward, does affect palms and soles

Question 10

Cat Scratch Fever caused by what?

Answer 10

Bartonella hensleae

Question 11

Pt is not immunized, has a rash, could be caused by what?

Answer 11

Measles, Rubella, VZV

Question 12

Complication of Measles?

Answer 12

SSPE (non-infectious)

Question 13

Virus that causes myocarditis?

Answer 13

Coxsackie B

Question 14

Adenovirus

Answer 14

Transmission: swimming in pool
ROS: conjunctivitis

Question 15

Where does VZV remain latent?

Answer 15

Neuron (DRG)

Question 16

Where to find HSV-2 in latency?

Answer 16

Sacral ganglion

Question 17

Complication of Chlamydia?

Answer 17

PID

Question 18

Syphilis screening test?

Answer 18

VDRL, RPR (heterophiles to cardiolipin ag)

Question 19

Syphilis confirmatory test?

Answer 19

FTA-ABS (specific treponema ag)

Question 20

Which Chlamydias cause blindness and trachoma?

Answer 20

A-C

Question 21

Which Chlamydias cause conjunctivitis?

Answer 21

D-K

Question 22

Which Chlamydias cause Lymphogranuloma Venereum?

Answer 22

L1-L3

Question 23

Confection in urogenital tract?

Answer 23

Chlamydia and neisseria

Question 24

Definition of AIDS?

Answer 24

Aids defining illness + high viral load

Question 25

Pathogenesis of HIV infection regarding dendritic cells?

Answer 25

Dendritic cells accumulate virus particles on surface but do not internalize the virus (carries virus to LN where it can successfully infect CD4+ T cells)

Question 26

Pt w/ endocarditis that has had exposure to farm animals, what is the organism?

Answer 26

Coxiella (Q fever)

Question 27

Cellulitis s/p cat or dog bite caused by what organism?

Answer 27

Pasteurella multicoda

Question 28

Infection with what organism causes cysts in the liver?

Answer 28

Echinococcus granulosus

Question 29

Saxitoxin associated with what?

Answer 29

Shellfish

Question 30

Treatment for pt exposed to rabies that has NOT been vaccinated?

Answer 30

Immunoglobulin (HRIG) and 4 doses of vaccine (day 1, 3, 7, 14)

Question 31

Vibrio cholera growth conditions

Answer 31

Halophilic

Question 32

Cryptosporidium prevention

Answer 32

Resistant to chlorination so water must be filtered

Question 33

Parasites leading to cancer?

Answer 33

S.hematobium (squamous cell ca of bladder) and Clonorchis sinensis (cholangiocarcinoma)

Question 34

Sulfatides (TB)

Answer 34

Prevent phagocyte-lysosome fusion

Question 35

HCV acts on hepatocytes how?

Answer 35

Inhibits apoptosis, has Councilmann bodies