IMMUNOLOGY

Detailed explanation-1: -What Are Germs? The term “germs” refers to the microscopic bacteria, viruses, fungi, and protozoa that can cause disease. Washing hands well and often is the best way to prevent germs from leading to infections and sickness.

Detailed explanation-2: -Viruses and bacteria are the cause of some infectious diseases. Some of the most well-known microscopic pathogens are the viruses and bacteria that cause many of diseases we hear about often and may have experienced ourselves. Viruses are tiny packets of genetic material surrounded by a protein shell.

Detailed explanation-3: -Viruses are the smallest of all the microbes. They are said to be so small that 500 million rhinoviruses (which cause the common cold) could fit on to the head of a pin. They are unique because they are only alive and able to multiply inside the cells of other living things.

Detailed explanation-4: -Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce. As such, there is some debate as to whether or not viruses should be considered living organisms. A virus that is outside of a host cell is known as a virion.

Detailed explanation-5: -A virus is a tiny agent (germ) that lives inside living cells, or host cells. Viruses need living cells to replicate or reproduce. There are thousands of viruses, some more common than others. For example, the common cold and the flu are viruses, but so are COVID-19, Ebola and HIV.