My THEORY...

The "delta" variant is just how the original virus interacts with the vaccine. The vaccines makes you more susceptible to catching the virus but allows your body to fight the virus off more easily. It basically turns you into a super spreader for a few days because your symptoms are minor. You might not even know you're sick.

They are so desperate to get everyone vaccinated because they know as the virus spreads for a 2nd round that anyone who isn't vaccinated will be given a stronger natural immunity. Which means then they really don't need the vaccine.

I'm convinced the reason they are so desperate to give everyone the vaccine is because they are making money off of it. Imagine if you could make $10 each off every person on earth... 70-80 billion dollars.

Regardless of the reason their own vaccine is making itself obsolete. So they are in a hurry.