Diseases Flashcards Preview

Biology 3401 > Diseases > Flashcards

Flashcards in Diseases Deck (39):
1

West Nile Pathogen

RNA virus (flavivirus)

2

West Nile Vector

sylvanic: culex
host: many

3

West Nile Reservoir

Birds

4

West Nile Outcome

West Nile fever or encephalitis in humans

5

West Nile Incubation

2-14 days post-bite, up to 21

6

West Nile Treatment

supportive

7

Bridge Vector

a different species than in sylvan cycle that takes pathogen from sylvan cycle to alternate host

8

Vector Competency

how well the vector and reservoir can both acquire and pass the pathogen to the host

9

Antigen

foreign invader that causes immune response

10

antibody

immune systems fighter against antigen

11

IgM

immunoglbin (mu): short term antibody [current infection]

12

IgG

Immunoglobulin (gamma): long term [past infection]

13

MIR

Minimum infection rate (minimum infected vectors in area)
# pathogen positives/ total # tested x100

14

SNP

single nucleotide polymorphism (single nucleotide variations in individuals)

15

PCR

polymerase chain reaction

16

West Nile Sylvanic Cycle

Culex to Birds

17

West Nile Bridge Vector

ex: aedes japonicus, but many

18

LaCrosse Pathogen

RNA virus (bunyavirus)

19

LaCrosee Vector

sylvanic/host: Aedes triseriatus (container breeder)

20

LaCrosse Reservoir

chipmunks/squirrels

21

LaCrosse Sylvanic Cycle

A. triseriatus and chipmunks & pathogen is passed from female to eggs (transovarian transmission)

22

LaCrosse Incubation/ Treatment

5-15 days, supportive

23

LaCrosse Symptoms

fever, headache, nausea, fatigue, hemi-paralysis

24

Triple E Pathogen

RNA virus (alphavirus)

25

Triple E Vector

sylvanic: Culistea melanura
host: Coquillettidia perturbans
* need both to transmit

26

Triple E Reservoir

birds

27

Triple E Incubation/ Treatment

4-10 days, supportive

28

Triple Symptoms

fever, headaches, cyanoisis, anorexia

29

Rocky Mountain Spotted Fever Pathogen

Gram Negative Bacteria: Rickettsia rickettsii

30

RMSF Vector

sylvanic/host: Dermacentor variabilis
2nd: two other species
-transmission from mother tick to eggs most often

31

RMSF Reservoir

wild rodents

32

RMSF Sylvanic cycle

Dermacentor variabilis to rodents

33

RMSF incubation/ treatment

2-14 days, Doxycycline

34

Lyme Pathogen

spirochete (Borrelia burgdorferi)- no gram stains so use polarized light

35

Lyme Vector

sylvanic/host: Ixodes scapularis

36

Lyme Reservoir

Peromyscus leucopus (white footed mouse)

37

Lyme Incubation/ Treatment

~7 days, Doxycycline, longer treatment to get hiding spirochetes

38

Lyme Symptoms

myalgia, chronic arthritis, bell's palsy, bulls-eye rash

39

Lyme Testing

Two tired test:
1st- enzyme test, if positive go to second (EIA)
2nd- IgM/IgG test