2 inhaled COVID-19 vaccines will be tested soon in the UK.

The Imperial College London team will use two frontrunners already in development - the Oxford one recently paused in trials and one from Imperial that entered human testing in June, BBC reports.

A number of groups around the world are currently working on clinical trials for Covid-19 vaccines. However, these trials are unlikely to tell us anything about the localised response in the nose, throat and airways - where the virus primarily attacks and invades cells”, comments for BBC Prof Robin Shattock, research lead on the Imperial vaccine.
In his opinion, It may well be that one group has the right vaccine but the wrong delivery method.

"And only trials such as this will be able to tell us that", concludes Prof Robin Shattock