Viral Reproduction

• • Once the virus is inside the host cell, two different processes can occur
  • Lytic Infection & Lysogenic Infection
• Lytic Infection

  • Viral DNA attaches to the host cell & makes the host cell replicate the viral DNA & RNA
  • Host cell's ribosomes make protein capsids
  • Viruses are made in the cell & break open (lyse) the cell to release the virus and the cell is destroyed
• Lysogenic Infection

  • viral genome enters host cell but doesn't replicate and kill the host cell immediately
  • The virus integrates its DNA into the host cell DNA
  • When the cell replicates - viral DNA is copied
  • Viral genome may be dormant in host cell for a long time
  • Lysogenic infections can become lytic with external stresses such as stress, colds, poor nutrition, and other infections