The market may has changed.But the fact remains, what about doctors and nurses and care givers around the world working with immunocompromised patients including children and sick babies. This will be needed forever; flu's were one thing now we have to live in a world of Covid and more down the pipe.
Also I wonder if we can get into new infectious diseases like HIV since MRNA has made it possible to vaccinate against it, may we can detect it, but just a thought.