Ah the “give up before we even try” approach. Did you actually read the post before commenting? Sure you can develop a putative attenuated strain in the lab, b

Ah the “give up before we even try” approach. Did you actually read the post before commenting? Sure you can develop a putative attenuated strain in the lab, but how are you going to collect human data on it quickly? The spread of a natural attenuated strain gives us something that no lab-generated strain can - human data right now.