ARBOVIRUS (TOGAVIRIDAE)

Question 1

comprise

Answer 1

arthropod borne RNA viruses.

these viruses multiple in vertibrates as well as arthropods.

Question 2

West nile fever - what kind of virus

Answer 2

Flavivirus endemic in east africa.

Question 3

infection of the …family

Answer 3

crow family(crows ravens magpies and bluejays)

spread by culex mosquitos.

WEST-CROW-CULEX.

Question 4

incubation

Answer 4

3-15 days

Question 5

manif

Answer 5

febrile illness or sudden onset. headache, myalgia arthalgia conjucntivitis pharyngitis cough adenopathy and abd pain hepatitis pancreatitis and myocarditis.
neurologic sx.

Question 6

exanthem

Answer 6

Non pruritic and composed of 50-100 erythematous poorly defined macules 0.5-1cm primarily on trunk and proximal extremities. with papular and psoriasiform variants rarley reported.
lasts 5-7 days and resolves without scaling.

Question 7

sandfly fever also known as

Answer 7

phlembotomus fever.

pappataci fever.

Question 8

sandfly fever vector

Answer 8

phlebotomus papatsii found in mediterranean area.

Question 9

sandfly fever lesions

Answer 9

small pruritic papules appear in the skin after the sandfly bite and persist for 5 days. after incubtion for another 5 days, fever headache malaise nausea conjunctival injection
stiff neck and abdominal pains suddenly develop.

sakin manif: scarlatiniform eruption on the face and neck.
recovery is slow w recurring bouts of fever. No specific tx avail.

Question 10

Dengue trasmitted by

Answer 10

aedes mosquitoes.

most severely affected south east asia and western pacific.

Inc 2-15 days.

Breakbone fever.

“islands of white in a sea of red”
lesions are macular or morbilliform and are usually confluent.