New Aussie vaccine protects against several COVID variants: researchers
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Australian scientists claim they have developed a COVID-19 vaccine capable of protecting against multiple variants of the virus.

Researchers from the Centenary Institute and the University of Sydney formulated the CoVEXS5 vaccine, which defends against five variants of the virus, including the “highly immune-evasive” Omicron XBB.1.5 variant and the SARS-CoV-1, a relative of SARS-CoV-2.

Studies showed reduced virus levels in the lungs of vaccinated mice by 99.9 per cent, compared to unvaccinated controls.

Scientists have created a COVID-19 vaccine that can protect against several variants of the virus, health researchers said. (AP)

It also induced high levels of virus-neutralizing antibodies and activated specific immune T-cells in the lungs, essential for the body’s defense against the virus.

“By integrating elements from various coronaviruses, we’ve developed a vaccine that can more effectively prepare the body to combat both current and future threats,” Dr. Claudio Counoupas, a researcher at the Centenary Institute’s Centre for Infection and Immunity, stated.

The CoVEXS5 vaccine features a unique version of the spike protein, fusing protein elements from several different COVID-19 variants into one single structure.

Researchers say this fusion helps the immune system recognise and respond to a broader range of virus types.

The CoVEXS5 vaccine features a unique version of the spike protein, fusing protein elements from several different COVID-19 variants into one single structure. (Getty)

”The immune response we saw in the laboratory was both strong and broad,” co-lead study author Elizabeth Chan said.

“It’s exciting to think that this approach could help future-proof vaccines against ongoing changes in the virus.”

The research team is now focusing on advancing the vaccine through further testing and development.

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