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Flashcards in Zoonoses III Deck (39):
1

what is Q fever due to? and how is it transmitted?

Due to Coxiella Burnetti
inhalation

2

reservoirs of Q fever

sheep, cattle, goat

3

phases of coxiella burnetti

phase I: highly infectious with intact LPS
phase II: not infectious with truncated LPS

4

symptoms in acute phase of Q fever

fever, chills, headache, rash, pneumonia, hepatitis

5

symptoms in chronic phases of Q fever

most important is endocarditis
osteomyelitis, and encephalitis

6

how to diagnose Q fever

IgM peak at 4 to 6 weeks

7

virus in korean hemorrhagic fever

hantaan virus

8

animal associated with koran hemorrhagic fever

deer mouse (most important) and rat

9

what is the severe pulmonary syndrome in korean hemorrhagic fever called

sin nombre

10

manifestation of Korean Hemorrhagic fever

interstitial edema, respiratory failure, death

11

diagnosis of korean hemorrhagic fever

RT-PCR

12

species of toxocariasis and the associated animals

toxocara canis - dogs
toxocara cati - cats

13

how does one get toxocariasis

children typically who are exposed or ingest contaminated soil

14

clinical syndromes of toxocariasis

visceral toxocariasis - fever, coughing, enlarged liver, pneumonia

ocular toxocariasis - larvae travels to eye and causes inflammation and scarring of retina leading to irreversible vision loss that is uniocular

15

prevention of toxocariasis

-wash hands especially after playing outside
-kids stay away from contaminated sandboxes
-dispose of animal feces properly

16

how does one get toxoplasmosis

-eating undercooked meat
-exposure to cats
-drinking raw milk

17

how done one get immune to toxoplasmosis

getting infection then eventually building lifelong immunity via elevated IgG

18

population most at risk for toxoplasmosis

AIDS - chorioretinitis (seen in others as well)
pregnant women because it can cause hydrocephalus in baby via vertical transmission

19

how to diagnose toxoplasmosis

PCR

20

ixodes tick bite is associated with what disease

lyme disease and bebesiosis

21

organism in lyme disease

borriela burgdorferi

22

what must be avoided if one has lyme disease

red meat

23

why must one avoid red meat if they have lyme disease

lone star tick carries sugar called alpha gal (also found in red meat) and once bitten body builds antibodies against the sugar

so once someone someone eat red meat, there is an allergic reaction - Type I HS

24

when is the most infectious stage of deer tick and why

during spring or summer because during fall larvae requires blood meal to develop into a nymph in which they stay dormant all throughout the winter.

during spring or summer, nymphs need another blood meal to become adults

25

what in mammalian causes the activation of microorganism within the tick and what happens thereafter

the higher temp of mammalians activates the microorganism which then multiplies and penetrates the gut wall then spreads to the salivary gland of the tick

26

what is seen in the various stages of lyme disease

primary: ECM - erythema chronicum migrans
secondary: secondary annular skin lesions aka exanthems
tertiary: ACA and CNS symptoms

27

how does one see ricketsii

giemsa staining

28

common symptoms of rickettsial infections

severe retro orbital headaches
rash
fever

29

mode of transmission and reservoir of rickettsii ricketsii aka rocky mountains spotted fever

tick bite
dogs

30

symptoms of spotted fever and what happens if left untreated

centripetal spread of rash - starts at wrist and goes to trunk then back down to extremities including sole of feet and palms of hands

become fatal - DIC, vascular collapse, renal and heart failure

31

microorganism in scrub typhus and mode of transmission

orientia tsutsugamushi
mites

32

symptoms seen in scrub typhus

maculo papular rash that includes sole of feet and palms of hands, renal failure, hemorrhage, death

33

species of ehrlichiosis

e. canis and e. chafeensis

34

how is ehrlichiosis transmitted

brown dog tick

35

what is ehrlichiosis often confused with

rocky mountain spotted fever

36

specie of anaplasmosis and what transmits it

anaplasma phagocytophilum and it is tick borne

37

animal associated with viral hemorrhagic fever syndrome

rats

38

type of damage is seen in viral hemorrhagic fever syndrome

damage to vascular system

39

four families of virus associated with viral hemorrhagic fever syndrome

arena, bunya, flavi, filo