How Viruses multiply themselves inside the body?

Viruses are tiny infectious agents that depend on living cells to multiply themselves. They may use an animal, plant, or bacteria as a host to survive and reproduce.

There are two processes that are used by viruses to replicate: the lytic cycle and the lysogenic cycle. 

There are two processes used by viruses to replicate: the lytic cycle and the lysogenic cycle. Some viruses reproduce or multiply using both methods, while others only use the lytic cycle.

During lytic infection, a virus enters the host cell, makes a copy of itself, and causes the cell to burst that can infect other cells.