DNA viruses are a type of virus that infect cells by inserting their genetic material, which is composed of DNA, into the host cell. Some synonyms for DNA virus include deoxyribovirus, genetic virus, and double-stranded DNA virus. These types of viruses replicate by using the host cell's machinery to transcribe their DNA into RNA, which is then used to produce new viral proteins. Examples of DNA viruses include herpesviruses, adenoviruses, and papillomaviruses. Understanding the different types of viruses and their mechanisms of replication can aid in developing effective treatments and vaccines to combat viral infections.