@bramboro Correct. Astronomers are not worried about XBB.1.5. But you can be sure they *do* have some half-assed theories about it they'd like to share.
Astrophysicist gets magnets stuck up nose while inventing coronavirus device
Australian Dr Daniel Reardon ended up in hospital after inserting magnets in his nostrils while building a necklace that warns you when you touch your face
Bram Boroson
T. J. Bombadil