AstraZeneca Covid Vaccine Study Halted After Spinal-Cord Issue: NIH – Bloomberg

Appearing before the Senate Committee on Health, Education, Labor & Pensions, Collins said the severe adverse event in the U.K. patient was transverse myelitis, a neurological disorder that causes inflammation of the spinal cord.

AstraZeneca Covid Vaccine Study Halted After Spinal-Cord Issue: NIH – Bloomberg

This negative side effect is documented in the vaccine inserts, to be associated with more than one vaccine, so it would be no big surprise to see it show up with one or more of these new vaccines as well.