However, researchers conducting the trial cautioned they were not yet able to see how long the ARCoV-induced antibodies might last or how strong their protection might be to other strains that cause Covid-19 but were not tested in the study.
ARCoV is stable at 25°C (77°F) for at least a week, researchers said, which could make it more attractive for potential immunisation campaigns in hard-to-reach populations in places where cold-chain storage and transportation are not always reliable.
While no Covid-19 vaccine has been approved for sale yet, more than 150 are in development globally with an aim to help end the global pandemic that has claimed over 600,000 lives. But whether any will succeed remains far from clear.
- Reuters