Summary: A virus is a non-living particle about half to a hundred the size of the smallest bacteria, Its disease causing, protein-based particle with DNA or RNA code in it's innards.
It is unable to reproduce outside a host cell. and they are often named for the disease they cause.They are considered non-living because they do not fit the criteria of the definition life. But the subject whether they are really living or non living organisms is argued.
Reproduction: A single virus particle is in and of itself essentially inert. It lacks needed components that cells have to reproduce. Viruses cannot express their genes or reproduce without the help of a living cell. Once a virus has infected a cell it will marshal the cells ribosomes, enzymes and much of the cellular machinery to reproduce.
Disease: SMALL POX: small pox is an acute infectious disease unique to humans, caused by either of two virus variants named variola major and variola minor. small pox localizes in small blood vessels of the skin. mouth and throat. If u get small pox in the skin it results in a characteristics maculopapular rash and later raised fluid filled blisters. This diseased killed an estimate of 400,000 Europeans during the 18th century.
CHICKEN POX: Chicken pox is caused by the varicella-zoster virus also known as human herpes virus three. chicken pox is one of the eight herpes viruses known to affect humans. It starts with characteristic spots apearing