There are currently 54 vaccines being tested on humans. Getting the necessary data to obtain approval for human testing requires a lot of funding. Testing on hu

There are currently 54 vaccines being tested on humans. Getting the necessary data to obtain approval for human testing requires a lot of funding. Testing on humans requires a lot of funding. In the end, maybe 4 vaccines will be used. Do you think the companies that produced and tested the ~50 vaccines that will not be used will get their investment back?