Oxford University has tested incorporating genetical material to produce spikes molecules from covid-19 (key for infecting cells) in an adenovirus (not coronavirus).
Adenovirus such modified were injected in non humans to test immunity response.
Test results on non human shows they are now immunised from covid-19 because of covid-19 spikes detected during adenovirus infection.
ChAdOx1 nCoV-19 has recently be renamed in AZD1222, it has been developed by Oxford University and approved by Astrazeneca.
Further tests to accelerate human vaccine delivery are on their way :
Last news says Vaccine doses production are awaited in September…
Many countries have paid to secure their order when vaccine production is launched.