Monday, 15 August 2022


COVID-19 vaccine patch fights variants better than needles: Australian study

01 August 2022 | News

Currently-available vaccines may not be as effective because of the constantly emerging new variants of COVID-19

image credit- shutterstock

image credit- shutterstock

A needle-free vaccine patch could better fight COVID-19 variants, such as Omicron and Delta, than a traditional needle vaccine according to a University of Queensland (UQ) study in mice.

The research, conducted in partnership with Brisbane biotechnology company Vaxxas, tested the Hexapro SARS-CoV-2 spike vaccine using the Vaxxas high-density microarray patch (HD-MAP) technology, and the results found the patch was far more effective at neutralising COVID-19 variants.

UQ’s Dr Christopher McMillan said the vaccine patch appeared to counteract new variants more effectively than the current SARs-CoV-2 vaccine delivered by injection.

“The high-density microarray patch is a vaccine delivery platform that precisely delivers the vaccine into the layers of the skin which are rich in immune cells.

We found that vaccination via a patch was approximately 11 times more effective at combatting the Omicron variant when compared with the same vaccine administered via a needle", Dr McMillan said.

Vaxxas CEO, David Hoey said this is further evidence of the game-changing potential the technology platform could have in helping nations better respond to global health emergencies, like the current and future pandemics.

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