Introduction to Viruses Flashcards
Viruses are small/big and are non-cellular/cellular.
Small, cellular.
What is an icosahedral structure?
20 faces, each equilateral triangles.
What is a helical structure?
Protein binds around DNA/RNA in a helical fashion.
What is a complex structure?
Neither icosahedral or helical.
Can viruses live or replicate outside of the cell?
No.
Most viruses are/are not host specific and only infect specific host cell types.
Are.
What are the 4 ways viruses can be classified?
Virion shape/symmetry
Presence/Absence of envelope
Genome structure
Mode of replication
What is the order of virus replication?
Attachment Uncoating Replication of genomic nucleic acid Protein synthesis Virion assembly Budding and Release Maturation
Give an example of a blood borne transmitted virus.
HIV
Hep B
Hep C
Give an example of a sexually transmitted virus.
HIV
Hep B
Give an example of a vertically transmitted virus.
HIV
Hep B
Give an example of a faecal-oral transmitted virus.
Hep A
Hep E
Polio
Give an example of a droplet transmitted virus.
Influenza
RSV
Give an example of a airborne transmitted virus.
Measles
Chickenpox
Give an example of a close contact transmitted virus.
Herpes simplex
CMV
EBV
Give an example of a vector-borne transmitted virus.
Dengue
Yellow-fever
Chikungunya
Give an example of a zoonotic transmitted virus.
Rabies
MERS
Ebola