[burger]

This is good news. 

I would really like to see challenge trials. If the numbers of cases continue to drop in the US, they're going to be hard-pressed to get a good sample of exposed people for Phase III.  This would also speed things up by many months.

Also, shouldn't the "warp speed" people in the federal government be clamoring to make 300 million doses of this?  The only thing we have to lose is money.  If a better candidate comes along, then at least we'll have the infrastructure in place.

[burger]

This is good news. 

I would really like to see challenge trials. If the numbers of cases continue to drop in the US, they're going to be hard-pressed to get a good sample of exposed people for Phase III.  This would also speed things up by many months.

Also, shouldn't the "warp speed" people in the federal government be clamoring to make 300 million doses of this?  The only thing we have to lose is money.  If a better candidate comes along, then at least we'll have the infrastructure in place.