This back-and-forth is because they change the narrative (aka propaganda) to fit whatever is beneficial at the moment.

From my memory, early reports (prior to release) said the injection didn't stop transmission, then at some point the narrative required it to - so they said that it did stop transmission, then they switched back to it not stopping transmission again.

I made up my mind about the shots months ago and have tuned it all out now. It's all damn lies so I don't care what they say now.