Bacteriophage (phage) are viruses that infect bacteria, though some definitions include viruses that infect prokaryotes more broadly (bacteria and archaea). They are distinct from eukaryotic viruses in their morphology and evolutionary history.
The bacteriophage tag should be used to label questions about phage, including
- phage isolation and culture
- phage molecular genetics
- phage comparative genomics
- phage-host interactions
- biotechnology using phage