| Summary: | The issue of antibiotic resistance in healthcare worldwide has led to a pressing need to explore and develop alternative approaches to combat infectious diseases. Among these methods, phage therapy has emerged as a potential solution to tackle this growing challenge. Virulent phages of the <i>Herelleviridae</i> family, known for their ability to cause lysis of <i>Staphylococcus aureus</i>, a clinically significant pathogen frequently associated with multidrug resistance, have proven to be one of the most effective viruses utilized in phage therapy. In order to utilize phages for therapeutic purposes effectively, a thorough investigation into their physiology and mechanisms of action on infected cells is essential. The use of omics technologies, particularly total RNA sequencing, is a promising approach for analyzing the interaction between phages and their hosts, allowing for the assessment of both the behavior of the phage during infection and the cell’s response. This review aims to provide a comprehensive overview of the physiology of the <i>Herelleviridae</i> family, utilizing existing analyses of their total phage transcriptomes. Additionally, it sheds light on the changes that occur in the metabolism of <i>S. aureus</i> when infected with virulent bacteriophages, contributing to a deeper understanding of the phage–host interaction.
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