Scientists are continually searching for new and improved ways to deal with bacteria, be it to eliminate disease-causing strains or to modify potentially beneficial strains. And despite the numerous clever drugs and genetic engineering tools humans have invented for these tasks, those approaches can seem clumsy when compared to the finely tuned attacks waged by phages—the viruses that infect bacteria.
source https://phys.org/news/2020-12-nature-hidden-arsenal-viruses-infect.html