Burst

Definition

Burst refers to the release of new viral particles from a host cell after replication. This process often results in the lysis or death of the host cell.

5 Must Know Facts For Your Next Test

1. The burst size is the number of virions released from a single infected host cell.
2. Lytic phages utilize the burst mechanism to release new virions, leading to cell lysis.
3. The timing and efficiency of the burst can be influenced by various factors, including the type of virus and host cell conditions.
4. The burst phase is a critical part of the viral life cycle and contributes to the spread of infection within a host organism.
5. Antiviral therapies may aim to inhibit stages leading up to or during the burst phase to prevent virus proliferation.

Review Questions

• What happens during the burst phase in a viral life cycle?
• How does the burst size impact viral infection spread?
• Which type of viruses typically cause cell lysis during their release?

Related terms

Lytic Cycle: A viral replication cycle that culminates in the destruction (lysis) of the host cell.

Virion: A complete, infectious form of a virus outside a host cell.

Host Cell: A living cell in which a virus replicates.