By Dr. Chinta SidharthanNov 23 2022Reviewed by Danielle Ellis, B.Sc. In a recent study posted to the bioRxiv* preprint server, researchers performed in vitro experiments to test the ability of different frequencies of ultrasound to inactivate severe acute respiratory syndrome coronavirus 2 .
About the study In the present study, the researchers produced viral stocks of the SARS-CoV-2 Wuhan-Hu-1 strain and the Gamma and Delta variants in biosafety level three conditions. Solutions containing these SARS-CoV-2 variants were exposed to different ultrasound frequencies of 3–12 MHz, 5–10 MHz, and 6–18 MHz for 30 minutes.
Results The results reported that ultrasound frequencies of 3–12 MHz, 5–10 MHz, and 6–18 MHz inhibited viral replication of the Wuhan-Hu-1 strain, but only the 5–10 MHz showed any virucidal effect against the SARS-CoV-2 Gamma and Delta variants.
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