What Is Virus? A virus is an infectious unicellular organism consisting of DNA or RNA nucleic acid. The genetic material of the virus DNA or RNA coated with protein. A virus cannot replicate itself instead it must infect cells. The virus uses components of the…Read more
What Is Vaccine? A vaccine is a biological substance designed to protect the human body from bacterial and viral infection. Vaccines are also called immunizations because they take advantage of your natural immune system to prevent infectious diseases. To understand how the vaccine works you…Read more
