AP, Reuters and some fact check website?
Might as well cite NYT and CNN while you’re at it.
I wonder if this is the 2012 study that was “fact checked”?
Epub 2012 Apr 20.
Immunization with SARS coronavirus vaccines leads to pulmonary immunopathology on challenge with the SARS virus
Conclusions: These SARS-CoV vaccines all induced antibody and protection against infection with SARS-CoV. However, challenge of mice given any of the vaccines led to occurrence of Th2-type immunopathology suggesting hypersensitivity to SARS-CoV components was induced. Caution in proceeding to application of a SARS-CoV vaccine in humans is indicated.
Immunization with SARS coronavirus vaccines leads to pulmonary immunopathology on challenge with the SARS virus - PubMed (nih.gov)
https://pubmed.ncbi.nlm.nih.gov/22536382/
NOTE: Immunopathology, is defined as an inappropriate immune response to an infection