Arborviral diseases Flashcards
Encephalitis: West Nile Encephalitis, St. Louis Encephalitis, Eastern Equine Encephalitis, Zika virus Hemorrhagic fevers: Yellow fever, Dengue, Ebola Virus
CA - West Nile encephalitis
West Nile encephalitis virus
Sxs - west Nile encephalitis
Fever, headache, NEUROLOGICAL SXS (brain-inflammation) and sometimes POLIO-LIKE PARALYSIS
Reservoir - west Nile encephalitis
Birds (CROWS), rodents
Transmission - west Nile encephalitis
Bite from mosquito
Preventative measures - west Nile encephalitis
- NO vaccines
- Vector control
Treatment - west Nile encephalitis
None
Misc - west Nile encephalitis
- most cases asymptomatic
- all over US
CA - St. Louis encephalitis
St. Louis encephalitis virus
Sxs - St. Louis encephalitis
Fever, headache, NEUROLOGICAL SXS (brain-inflammation)
Reservoir - St. Louis encephalitis
Birds
Prevention - St. Louis encephalitis
Vector control
No vaccine
Misc - St. Louis encephalitis
- usually adults over 40 years old
- Central US
CA - Eastern equine encephalitis
Eastern equine encephalitis virus
Sxs - eastern equine encephalitis
Fever, headache, NEUROLOGICAL SXS (brain-inflammation)
Reservoir - eastern equine encephalitis
HORSES & birds
Transmission - eastern equine encephalitis
Bite from mosquito
Prevention - eastern equine encephalitis
Vector control
No vaccine
Treatment - eastern equine encephalitis
None
Misc - eastern equine encephalitis
- over 30% mortality in humans
- southeast US
CA - yellow fever
Yellow fever virus
Sxs - yellow fever
- Fever, muscle pain, rash, JAUNDICE
- blood vessel damage, hemorrhage in severe cases
Reservoir - yellow fever
WILD MONKEYS
Transmission - yellow fever
Bite from mosquito
Prevention - yellow fever
- Vector control
- VACCINE AVAILABLE
Treatment - yellow fever
None
Yellow fever is AKA as
JUNGLE FEVER
CA - dengue
Dengue virus
Sxs - dengue
- Fever, muscle pain, rash
- blood vessel damage, hemorrhage in severe cases
Reservoir - dengue
Humans
Transmission - dengue
Bite from mosquitos
Prevention - dengue
- vector control
- no vaccine available
Treatment - dengue
None
CA - ebola
Ebola virus
Sxs - Ebola
- fever, muscle pain, rash
- blood vessel damage, PROFUSE HEMORRHAGE in severe cases
Reservoir - Ebola
Cave -dwelling fruit bats
Transmission - Ebola
- spread by contact with animal blood & animal waste products
- spread by infected human body fluids
Prevention - Ebola
Vaccine
Treatment - Ebola
None
Misc - Ebola
- NOT spread by arthropod vector
- 90% mortality rate
CA - Zika virus
Zika virus
Sxs - Zika
- fever, muscle pain, rash, CONJUNCTIVITIS (pink eye)
- MOSTLY NEUROLOGICAL SXS, some blood vessel damage
Reservoir - Zika
WILD MONKEYS
Transmission - Zika
- bite from mosquito
- sexually transmitted, from mother to fetus, blood transfusions
Prevention - Zika
Vector control
No vaccine
Treatment - Zika
None
Misc - Zika
- infection during pregnancy —> microcephaly (small brain in infants)