Yes. The whole idea of looking for a natural attenuated strain is we can use the natural spread of this strain to prove it is safe. This is explored in a lot mo

Yes. The whole idea of looking for a natural attenuated strain is we can use the natural spread of this strain to prove it is safe. This is explored in a lot more detail in the other recent posts on my blog. Yes it is possible, but the only way we will know is if we look. I am arguing we should look.