What are the "rare circumstances"? Let's see….
"Although “every effort” should be made to ensure a patient receives the same vaccine, in rare situations “any available mRNA COVID-19 vaccine may be administered at a minimum interval of 28 days between doses” — if supplies are limited or the patient doesn’t know which vaccine they originally received, the CDC’s new guidance says."
Rare circumstances include "limited supplies" and "if patient can't recall " which one they originally received.
Is no one keeping track of which one you received?
I can't tell if this is a majore brainstorm of medical miracles by the Trump Administration (it's all one vaccine, just marketed differently), or the clusterfuck of the century. CDC says they are NOT interchangeable, but they are if supplies are low or you can't remember which one you got the first time. If that's the case, HOW do they know you got the first one?
Could you just show uptwicefor your second shot? (28 days apart, mind you!) KEK!