Any of a family of RNA viruses containing reverse transcriptase in the virion. Retroviruses proliferate by a process that is the reverse of normal viruses. Reverse transcriptase enables the virus to convert viral RNA into DNA. This reverses the normal process of transcription where DNA is converted into RNA.

	Human Immunodeficiency Virus Related Topic "A retrovirus associated with onset of advanced immunodeficiency syndrome (AIDS)..."

Last updated: May 10, 2007