What are Viruses???

Viruses: A Virus is a biological agent that reproduces inside the cells of living hosts. They are smaller than bacteria and cannot be observed with an ordinary microscope. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Question: Why viruses are classified as non-living things?

Answer: Viruses are not classified as living things because they cannot reproduce by themselves. They can only reproduce by invading or taking over the cells of living organisms. They are not made out of cells, they cannot keep themselves in a stable state, they do not grow.
Even though they definitely replicate and adapt to their environment, that is why viruses are not classified as living things.

Diseases caused by Viruses:

Viruses cause many human diseases, these include:

• Small pox
• Hepatitis
• Polio
• Herpes and cold sores 
• Ebola and Hanta fever
• HIV, the virus that causes AIDS
• Severe acute respiratory syndrome (SARS)
• The common cold and different types of flu
• Measles, mumps, rubella, chicken pox and shingles
• Rabies
• Dengue fever, Zika and Epstein-Barr

How to prevent from these diseases

• Wash your hands often.
• Get vaccinated.
• Use antiviral sensibly.
• Stay at home if you have signs and symptoms of an infection.