It is just rotten luck that these things look like something the borg would use to assimilate people, but if they ever get used for medical treatments, the public relations campaign may be... challenging? In reality they're an important part of our gut microbiome.
It is estimated there are more than 10,000,000,000,000,000,000,000,000,000,000 bacteriophages on the planet, more than every other organism combined. Disgusting.