Step 1
Adsorption/Attachment: The surface proteins of the virus binds to the
host cell by binding to a cell surface receptor
Step 2
Penetration/Uncoating: The virus enters the cell and the capsid is
uncoated to release the viral nucleic acid
Step 3
Nucleic Acid Expression: viral nucleic acid is replicated,
transcribed to the viral mRNA and translated to viral proteins by the
host cell's enzymes
Step 4
Maturation & Assembly: replicated viral DNA and newly made viral
proteins are assembled together to form new viruses that only lack an envelope
Step 5
Release:
-Lysis: virus kills the host cell by cell lysis and the virus is
released from the dead cell
-Exocytosis: virus does not kill the cell
-Budding: virus does not kill the cell but attaches to inside of the
host cell membrane, buds through the cell membrane to exit, and during
the process the virus obtains its envelope which is part of the host
cell cytoplasmic membrane
Lysis
virus kills the host cell by cell lysis and the virus is released
from the dead cell
Exocytosis
virus does not kill the cell
Budding
virus does not kill the cell but attaches to inside of the host cell
membrane, buds through the cell membrane to exit, and during the
process the virus obtains its envelope which is part of the host cell
cytoplasmic membrane