M12 - Viruses Flashcards
What is the name of a singular virus particle?
Virion
What are the 3 components of a virus particle ?
- virus envelope
- protein shell
- virus genome
What is the virus envelope?
lipid bilayer containing viral proteins
Viruses are dependant/ independant on their host?
dependant
What process aids viruses assemble?
budding
What 2 ways can viruses spread within the host?
- Neurally
- haematogenously
What type of immune response can prevent entry, mark virions for destruction and destroy infected cells ?
Adaptive
What are the 2 diagnosis techniques for viral infections?
- Saliva slide test
- PCR
HIV and Hepatitis are what type of viruses?
Blood borne viruses
What type of virus are coronavirus and herpes?
Respiratory and mucosal
What specific BBV is HIV and AIDS?
retrovirus
Why does AIDS happen?
system collapses
What is the name of the most common type of cancer seen in HIV?
Kaposi sarcoma
What is the treatment technique for HIV?
vaccination with PEP
What is the clinical manifestation of hepatitis viruses?
liver disease
What type of hepatitis is most likely to progress chronically?
Hep C
What are the risk groups for hep B and C?
- Injecting drug users
- Greater number of sexual partners
- Babies of infected mothers
- Blood product exposure
What type of HSV is most common in children?
HSV-1
How is HSV-2 transmitted?
sexually
What is a feature of HSV that causes it to reactivate?
Latency
What produces cold sores?
Reactivated HSV-1 from trigeminal ganglia to lips to produce vesicles/ lesions.
