STEPS IN VIRAL REPLICATION and specimen collection Flashcards
STEPS IN VIRAL REPLICATION
- Attachment/Adsorption
- Penetration
- Uncoating
- Macromolecular synthesis
- Viral assembly
- Lysis and release
recognition of host cell and specific binding between viral capsid proteins and the receptor of the host cell
Attachment/Adsorption
Viruses enter the host cell
PENETRATION
______ can penetrate the cell membrane directly.
Naked virions
________ may enter the cell by fusion with the cell membrane or via _______ whereby the ______ enters in a vacuole
Enveloped viruses;
endocytosis;
enveloped virus
process by which the capsid is removed
Uncoating
In uncoating, _______ usually release the genome into the cytoplasm, whereas most _____ release their genome into the host nucleus
RNA viruses;
DNA viruses
production of nucleic acid and protein polymers
Macromolecular synthesis
process by which structural proteins, genomes, and in some cases viral enzymes are assembled into virus particles
Viral assembly
new virions are then released by lysis if they are naked viruses or by budding if they are enveloped viruses
Lysis and release
In lysis and release, if they are naked viruses, they are released by
released by lysis
In lysis and release, if they are enveloped viruses, they are released by
budding
in Specimen Collection and Transport, what swab to use
Use Dacron, Rayon swab
Storage for specimen
4°C for 5 days;
if >6 days = 20°C or –70°C