[Customised infectiology - Phage therapy: from theory to clinical evidence].

Phages are viruses able to specifically infect and lyse target bacteria. The use of phages in the treatment of bacterial infections has been limited due of the development of antibiotics since the 1950's. However, phagotherapy is now gaining more interest due to the emergence of multidrug resistant bacteria. Here, we present the benefits and disadvantages of using phages versus antibiotics to treat bacterial infections and describe potential development areas for phagotherapy by reviewing current evidence.