There is a new animal in the room: private pay-to-play clinical trials in third countries. In one case, people have to pay 1 million USD to enrol into an anti-aging clinical trial. Some of them could be scams. But it an option to take the risk and get the vaccine earlier for customers, and to get volunteers for the company.
EDITED: Andre Watson will be now live about private vaccine creation: https://www.facebook.com/events/516073069307382/
I think that for viruses it will be difficult to become completely radiation resistant, as it would require complete overhaul of their makeup: thicker walls, stronger self-repair.