Phage therapy is a treatment that uses bacteriophages, which are viruses that specifically target and kill bacteria. This method is being explored as an alternative to antibiotics, especially for infections caused by antibiotic-resistant bacteria. Phages can be isolated from various environments, such as soil or water, and are chosen based on their ability to infect specific bacterial strains. The use of phage therapy dates back to the early 20th century but has gained renewed interest due to the rise of antibiotic resistance. Researchers are studying its effectiveness in treating various infections, including those caused by Staphylococcus aureus and Escherichia coli.