The Water Deer (Hydropotes inermis) is a usually solitary animal, besides the rutting months, and a good swimmer. There exist two subspecies: the Chinese Water Deer (Hydropotes inermis inermis) and the Korean Water Deer (Hydropotes inermis argyropus).
Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell.
Viruses have protein and genetic material. No virus contains both RNA and DNA. A virus is a nucleoprotein and the genetic material is infectious. In general, viruses infect plants having single stranded RNA. Viruses infecting animals have either single or double stranded RNA or double stranded DNA.