What is Viral Disease?
A virus can only have one effect on a single type of living organism but another affect on another type of organism at the same time. This illustrates how a virus which affects a human can not affect a mouse. Viruses are complex in nature. They contain genetic material, protein, or DNA enclosed by a protective coat of lipoprotein, fat, or sugar. The virus particles are coated on both sides with this protective coat, and the coating prevents the viruses from coming into contact with living tissues.
The Lipophilic viruses are enveloped in a lipid membrane. The Lipophilic part of a virus is open to the air, while the Fat globes and other viruses are closed. In order for a virus to become an infectious agent, it must bind to a non-infectious substance, such as a non-proteinous coating on cells, or a protein coating on a non-cellular material. Most viruses bind to one or two different types of molecules. For example, both hepatitis B and hepatitis C viruses are enveloped in a protein coat that prevents them from becoming airborne.
A virus can be either virulent or non-virulent. Virous viruses are capable of reproducing rapidly in cells, altering their structure, and increasing their number easily. These viruses spread quickly through the environment, and they have the ability to damage or destroy nearby cells. Non-virulent viruses are not capable of changing the genetic makeup of cells and cannot reproduce by the mere attachment of a protein coat to a non-infectious surface. However, some viruses do produce proteins, as well as non-protein, coats that adhere to the surfaces of nearby cells.
Nucleic acids are the genetic building blocks of life. Every living cell contains DNA, which encodes the entire genetic makeup of the host cell. Occasionally, DNA is replicated by the chromosomes of an infected cell. When this occurs, the nucleus of the cell has been affected and a viral pathogen is present.
A virus may affect one or more genes in a host cell. A gene can be single, double, or triple. A virus that infects a cell can insert its own genetic constructions into the cell’s genetic blueprint. The best example of a viral attack is the insertion of the hepatitis virus into a cell’s nucleoplasm, which produces a protein disease.
Every living cell contains viral components; however, these components do not cause any harm to the living cells when they are in the unicellular state. When the genetic material of a cell is altered, it can create problems for the cell. However, when the DNA of a cell is damaged, the virus is able to grow and replicate, thus causing disease.