Day: August 12, 2021

Most people think of viruses as dangerous and harmful little organisms. However, they are far from it. In reality, viruses play an integral role in the evolutionary development of life on earth. They reproduce within living cells, and they infect other living cells, usually causing serious damage. A well-designed immune system can easily overcome these types of viruses. The life cycle of a virus is similar to that of an infectious agent. The infectious agent must invade and infect a host cell first before spreading out into the body. The […]