DNA viruses
| Family | Structure | Envelope | Examples/importance |
|---|---|---|---|
| Herpesviruses | Double-stranded, linear | Enveloped | Herpes simplex virus, varicella-zoster virus, cytomegalovirus, Epstein-Barr virus |
| Hepadnavirus | Double-stranded, circular | Enveloped | Hepatitis B virus |
| Adenovirus | Double-stranded, linear | Naked | Common cold, conjunctivitis |
| Parvovirus | Single-stranded, linear | Naked | Parvovirus B19 |
| Papillomavirus | Double-stranded, circular | Naked | HPV |
| Poxvirus | Double-stranded, linear | Enveloped | Smallpox, molluscum contagiosum |
| Polyomavirus | Double-stranded, circular | Naked | JC virus (progressive multifocal leukoencephalopathy) |
Parvovirus is the only DNA virus that is not double-stranded
HHAPPPPy! - Hepadna; Herpes; Adeno; Pox; Parvo; Papilloma; Polyoma
HHAPPPPy! - Hepadna; Herpes; Adeno; Pox; Parvo; Papilloma; Polyoma