1. Rapid Replication: The lytic cycle is characterized by rapid viral replication within the host cell. The virus hijacks the cell's machinery to produce numerous copies of itself.
2. Cell Lysis: The newly produced viruses eventually overwhelm the cell, causing it to burst (lyse). This releases a flood of new viral particles that can infect neighboring cells, spreading the infection.
3. Symptoms and Disease: The death of infected cells contributes directly to the symptoms of viral diseases. For example:
* Flu: The lysis of cells in the respiratory tract causes coughing, sneezing, and fever.
* HIV: The lysis of immune cells weakens the body's defenses, leading to AIDS.
* Herpes: The lysis of skin cells causes blisters and sores.
Overall, the lytic cycle is a highly destructive process for the host organism. It leads to cell death, tissue damage, and the development of disease symptoms.
It's important to note: Some viruses can exist in a lysogenic cycle where they integrate their DNA into the host's genome and remain dormant for extended periods. This can lead to long-term consequences for the organism, but the immediate effects are less severe than the lytic cycle.
