Question types

Start with

Question limit

of 52 available terms

Advertisement Upgrade to remove ads
Print test

5 Written questions

5 Matching questions

  1. endemic host animal and animal borne viruses
  2. diagnosis of insect vector diseases
  3. Complexities of arboviruses
  4. Other important animal borne viruses
  5. Primary clinical manifestation of all of the major arboviruses in the US
  1. a -Mosquito borne viruses must be able to replicate at ambient temperatures in the mosquito as well as that host body temperatures
    -this suggests a very broad host range
  2. b Encephalitis
  3. c In most cases the endemic host animal is not killed by the virus; however rabies virus is the exception
    -viruses can be highly legal to humans
  4. d 1. Cultures are available for most of the Arboviruses
    -not routine
    -may involve inoculation of newborn mice
    2. diagnosis is usually made by serology using acute and convalescent sera
    -obtaining a sample can be troublesome
    -blood only contains virus during viremia
    -stool is negative
    -viruses rarely found in the throat or CNS
    3. PCR looks promising
  5. e -lassa virus -arena virus (Small rodents)
    -marburg virus - filovirus (Rodents/monkeys)
    - Ebola - filovirus (rodents/monkey)
    * all of these cause hemorrhagic fever

5 Multiple choice questions

  1. -Seen in Colorado tick fever
    -transmission pattern: small animals→ ticks→ other tics → back to small animals
    -humans are incidental
  2. -Encephalitis
    -hemorrhagic fevers
    -arthritis or arthralgias
  3. Viruses are usually shed in the feces and urine of the endemic host animal its humans acquire the virus by inhalation of the dried fecal matter or urine
    -rabies can spread this way but most known for being spread by animal bites
  4. -Multiple reservoirs
    -mosquitoes to birds, snakes, and rodents then back to mosquitoes
    -animals serve as the winter reservoir
    -humans and horses are dead end, tangential, or incidental hosts
  5. 1. Patient gets bitten by and in fact dead skunk, Fox, bat, raccoon, dog, cat
    2. virus replicates in muscle tissue at the site of the bite and spread to local nerve cells
    3. travels via retrograde transport to CNS and replicates in the gray matter virus
    4. virus will also spread to salivary glands via nerves

5 True/False questions

  1. Incidence of incidental host infectionThe incidence of infection is much higher than the number of people that develop clinical symptoms
    -for every person that develops West Nile encephalitis there are approximately 150 people who are infected


  2. Negri bodies-rabdovirus
    -Causes encephalitis
    - primary vectors are skunks, raccoons, foxes, bats, and dogs


  3. Number of known survivors from rabiesControl exposure to vector


  4. viruses employing the sylvan cycleRabies


  5. Prevention of vector virusesControl exposure to vector