VirusesViruses

What are Viruses

A virus is a non-cellular particle made up of genetic material and protein that

can invade living cells.

Herpes VirusHerpes Virus

The Structure Of a VirusThe Structure Of a Virus Viruses are Viruses are

composed of a composed of a core of nucleic core of nucleic acid surrounded acid surrounded by a protein coat by a protein coat called a capsidcalled a capsid

The Nucleic core is The Nucleic core is either made up of either made up of DNA or RNA but DNA or RNA but never both.never both.

Cycle of Lytic and LysogenicCycle of Lytic and Lysogenic

VaccinesVaccines

►Viruses grown on chicken Viruses grown on chicken embryos are attenuated embryos are attenuated vaccinesvaccines

►Another type of vaccine is Another type of vaccine is made by heat killing the virus made by heat killing the virus

Retrovirus Change

DNA into RNA.

Example of a Retrovirus is HIV