A Sydney-based biotech firm has developed a world-first COVID vaccine, that 
could be more effective than those currently available. Engeneic uses 
nanocellular technology to stimulate a strong antibody response. Not only has 
it been found to work against mutant strains, including Delta.. it's also shown 
promising signs of long-lasting efficacy, and doesn't require refrigeration. 

https://www.youtube.com/watch?v=5bUPQ6OvJ5w