P1357: IMPAIRED CELLULAR RESPONSES AGAINST SARS-COV-2 AFTER COVID-19 INFECTION IN ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANT RECIPIENTS. (23rd June 2022) - Mamez, A.-C.; Pradier, A.; Stephan, C.; Giannotti, F.; Masouridi-Levrat, S.; Morin, S.; Neofytos, D.; Vu, D.-L.; Melotti, A.; Arm, I.; Eberhardt, C. S.; Tamburini, J.; et al.