Despite good intentions, the developed world has done a poor job of providing sufficient Covid vaccines to developing nations. Drs. Peter Hotez, Maria Bottazzi and colleagues at Texas Children’s Hospital and Baylor College of Medicine in Houston have devised an effective, low-cost vaccine called Corbevax. It is easy to store — no low-temperature freezers required, just regular refrigeration — and relatively easy to make, using recombinant yeast to produce the vaccine antigen, in a process that has been used successfully for decades.
Most importantly, there are no patents on the vaccine, so that it can be licensed easily by poor countries.
Read more about this advance in world health here: A COVID Vaccine for All, by Peter J. Hotez and Maria Elena Bottazzi, Scientific American, Dec. 30, 2021.
An interview with Peter Hotez at Helio Infectious Diseases.