Zoonotic Diseases

Question 1

rabies

Answer 1

viral disease
transmitted in saliva
need to treat before onset of symptoms (prophylactic treatment)

Question 2

rabies infection

Answer 2

virus enters muscle tissue via bite
travels to nervous tissue to multiply, spreads to spinal cord and brain

Question 3

clinical stages (ex. in dog)

Answer 3

prodromal/incubation (2-3 days): may see subtle changes
excitative/furious stage (1-7 days): animal is aggressive, biting/chewing is common
paralytic/dumb stage (2-4 days): uncoordinated, muscles paralyzed
death, often due to paralyzed diaphgram

Question 4

human symptoms of rabies

Answer 4

itching around bite, flu like symptoms that go away
muscle aches, hypersensitivity to light/sound, gradual paralysis

Question 5

time until symptoms

Answer 5

dogs: up to 2 weeks
humans: 30-60 days

Question 6

treating a bite

Answer 6

virus is fragile, can be killed by soap and hot water

Question 7

lyme disease

Answer 7

primarily spread by deer ticks

Question 8

baylis ascaris

Answer 8

roundworm found in racoons
common to travel to brain, cause death

Question 9

west nile virus

Answer 9

transmitted by mosquitos
most don’t show symptoms

Question 10

how do mosquitos get west nile?

Answer 10

from biting infected birds

Question 11

tuberculosis

Answer 11

bacterial infection
large problem in humans until antibiotics discovered

Question 12

brucellosis

Answer 12

spread by cattle, sheep, goats
humans get it from unpasteurized products of infected animals