[dublin]

And as mentioned above, he later clarified that he was talking about pre-Omicron variants, where that was true. It now seems possible to get Omicron more than once, but since it has virtually no impact (most people never even know they have it, especially here in Austin in Dec-Feb "Cedar Fever" season), it really makes no difference, other than that it's not yet known if it works the other way, so that an Omicron infection may provide protection against prior variants.