Answer:
Step-by-step explanation:
Viruses are able to reproduce quickly inside the human body because they hijack the host cell's machinery to replicate themselves. Once a virus enters a host cell, it uses its own genetic material to take control of the cell's replication and protein synthesis machinery. The virus then forces the cell to produce more copies of the viral genome and viral proteins, which assemble into new virus particles.
This process of virus replication can happen very quickly and efficiently, with some viruses able to produce hundreds or thousands of new virus particles in a single infected cell. Additionally, viruses can rapidly spread from cell to cell within the body, infecting new host cells and continuing the cycle of replication.
The rapid replication and spread of viruses inside the human body can lead to the onset of symptoms and the development of disease. Additionally, this quick reproduction and spread can make it difficult for the human immune system to keep up with the infection, leading to more severe and potentially life-threatening consequences.