The findings more than double the number of known defense mechanisms, piquing the interests of molecular biology tool developers.

Researchers reconstruct images of a virus that infects Escherichia coli bacteria.

Phage therapy is but one example of using biological entities to reduce our reliance on antibiotics and other failing chemical solutions.

In Chapter 3, “The Enemy of Our Enemy Is Our Friend: Infecting the Infection,” author Emily Monosson makes the case for bacteriophage therapy in the treatment of infectious disease.

AcrIIA4, an inhibitor protein from the Listeria bacteriophage, can block DNA from binding to Cas9 during genome editing.

When engineered to use a four-billion-year-old version of the protein thioredoxin, the bacteria can stall bacteriophage replication, a new study shows.

Viruses within Salmonella rapidly spread genes throughout the bacterial population during a gut infection, scientists show.

A team finds that viruses can sense chemical signals and use them to decide whether to kill or infect their hosts.

In bacteriophage genomes, researchers find three anti-CRISPR proteins that naturally inhibit CRISPR-Cas9 in one bacterial species and can do the same in human cells.