Changes

==Viral Characteristics==

==Viral Characteristics==

Non-enveloped, viruses with icosahedral symmetry containing a single, linear molecule of double-stranded DNA.

 

CAV-1 is a non-enveloped virus with an icosohedral nucleocapsid that containes a single, lenear molecule of double-stranded DNA.

The  capsid consists of capsomeres (called hexons) and 12 vertex capsomeres  (called pentons). These are the only viruses with a fiber (the fiber  antigen) protruding from each of the 12 pentons (see Fig. 13-1).

The  capsid consists of capsomeres (called hexons) and 12 vertex capsomeres  (called pentons). These are the only viruses with a fiber (the fiber  antigen) protruding from each of the 12 pentons (see Fig. 13-1).