Most Medical Doctor’s do not even know.
I think the majority on this forum will be surprised.
Will make you think.
The History of Phage Therapy
Yes, phages are a fascinating area. This paper is also interesting wrt phage therapy.
https://www.researchgate.net/figure/Phage-therapy-concepts-pret-a-porter-or-sur-mesure-Both-approaches-should-be-possible_fig1_47730148
Read about it in “The Good Virus”.