Introduction to Virus

Virus is parasites.
Virus is the smallest and tiniest of the microbes.
They are much smaller than Bacteria.
They are collection of genetic composition DNA and RNA.
This genetic information is well protected inside the protein coated wall called capsid.
Virus links the living and the non-living world.
When virus comes in contact with cells they make the cells engulf them.
Once when in contact with these cells the virus releases its genetic information (DNA and RNA) into these cells.
The cells receive genetic instructions from the virus.
New instruction stops preparation of proteins in cell.
Instead viral protein is produced which helps the cells to generate more viruses.
The cells act as the virus.
In many cell the viral coding stays for years together.
Virus reproduces like living organisms.
Viruses are both animate and inanimate in nature.
Diseases caused by virus are HIV, Flu, Cancer and Small pox.