Scientists are building viruses from scratch to fight superbugs

Bacteriophages, viruses that infect bacteria, have been used as medical treatments for bacterial infections for more than 100 years. Interest in these viruses is rising again as antibiotic resistance becomes a growing global health threat. Despite this renewed attention, most phage-based research has remained focused on naturally occurring viruses, largely because traditional methods for modifying phages are slow, complex, and difficult to scale.