Scientists may have found an entirely new way to fight dangerous viruses — using ultrasound instead of drugs. Researchers from the University of São Paulo have demonstrated that carefully tuned ultrasound waves can destroy influenza A and COVID-19 viruses while leaving human cells unharmed.
The discovery could open the door to future antiviral treatments that work mechanically rather than chemically, offering a fresh strategy against fast-mutating viruses.
How Ultrasound Destroys Viruses
The researchers used high-frequency sound waves to target the outer structure of viruses. When exposed to the right ultrasonic frequency, the viral particles begin to vibrate intensely. This process creates a resonance effect that eventually tears apart the virus’s protective envelope.
Scientists compared the phenomenon to a popcorn kernel bursting under pressure. As the vibrations build, the virus loses its structural stability and can no longer infect cells. Human cells, however, appear resistant to the same damage because of their larger and more complex structure.
The experiments successfully disrupted both SARS-CoV-2, the virus responsible for COVID-19, and the H1N1 influenza virus.
A Different Kind of Antiviral Therapy
Unlike conventional antiviral medications, ultrasound treatment does not depend on chemicals or genetic targeting. Researchers believe this may reduce the risk of viruses evolving resistance over time. The technique also avoids producing chemical waste, making it potentially safer for long-term medical use.
Although the technology is still in its early stages, scientists are optimistic about expanding the research to other viruses such as dengue and Zika. More testing will be needed before the method can be used in hospitals, but the findings suggest that sound waves could someday become a powerful new tool in modern medicine.
