Viruz zoo Flashcards
Dengue virus
Enveloped
Icosahedral capsid
+ssRNA
4 serotypes no cross protection
Yellow Fever Virus
Enveloped
Icosahedral capsid
+ssRNA
Hantavirus SNV
Enveloped
Spherical capsid
-ssRNA
Reovirus
Non- enveloped
icosahedral capsid
dsRNA
(Colorado tick fever)
Marburg/Ebola virus
Enveloped helical capsid
Pleomorphic filamentous
+ssRNA
Lassa etc virus
Enveloped
Helical capsid
2 circular ssRNA
Lassa transmission
Ingestion
Direct contact
Inhalation
Marburg/ebola mechanism
Replicates
Destroys parenchymal cells
(Liver, lungs, spleen & LN)
Lassa symptoms
Fever
Petechial rash
Gum bleeding
Marburg/ebola symptoms
Flu like
MASSIVE Hemorrhages
Marburg/ebola diagnose treat
Serological & MT
Quarantine
Reovirus transmission
Vert host to person
Reovirus mech
Replicates w/in erthyroid precursor RBC
Most common tick borne in US
Reovirus symptoms
Hemorrhagic disease
CNS involvement
Hanta virus transmission
Inhalation of rodent infected feces
Hanta symptoms
Febrile to acute resp edema
Hemorrhagic w/ renal syndrome
DIC
Yellow fever transmission
Mosquito
Human monkeys
yellow fever symptoms
Acute: fever, myalgia headache shivers
Toxic: w/in 24hrs fever reappears
several body systems affected
Jaundice, bleeding from mouth, nose, eyes and/or stomach
Yellow fever diagnose and treat
Detect AB
Supportive and
Vaccine
Dengue Transmission
Mosquito
P to P
Dengue symptoms
Maculopapular rash
Weakness malaise
Anorrhexia
Hemorrhagic dengue symptoms
Petechiae, purpural or ecchymoses
Thrombocytopenia
DSS shock and death
