They haven’t submitted to the FDA for emergency use authorization yet because their trials aren’t done yet. Their trials started well after Pfizer/Moderna and are longer than J&J. They’re expected to apply in the next 3-4wks.

The trial were delayed. I read just today that the results are being reviewed to see if sufficient for submittal to the FDA.

My understanding is, FDA requires data from trials run on US population. Trials from other countries are not sufficient alone. AstraZeneca is currently running a trial in the US.