Texas scientists’ new Covid-19 vaccine is cheaper, easier to make and patent-free

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Texas scientists’ new Covid-19 vaccine is cheaper, easier to make and patent-free
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Dr Maria Bottazzi says their vaccine, called Corbevax, is unique because they do not intend to patent it

Corbevax’s clinical trial data has yet to be released due to resource constraints, but Texas Children’s hospital said the vaccine was over 90% effective against the original Covid-19 strain and over 80% effective against the Delta variant. The vaccine’s efficacy against the Omicron variant is currently being tested.

The Corbevax vaccine uses a platform called recombinant protein sub-unit technology, which places an actual piece of Covid-19’s spike protein in yeast cells. The yeast cells then copy the vital protein and the protein is introduced to the immune system. Biological E, an Indian pharmaceutical company accustomed to producing hepatitis B vaccines with whom Bottazzi’s team has a longstanding relationship, has already produced 150m doses of the new Corbevax vaccine and will soon be able to produce 100m doses every month.

Bottazzi said the reason she and her team did not patent the vaccine was because of her team’s shared philosophy of humanitarianism and to engage in collaboration with the wider scientific community.

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