Has anyone looked into this? Does this fall under EUA auth?

FDA clears AstraZeneca's Covid antibody treatment for immunocompromised

The antibody cocktail therapy involves getting preventive injections as often as every six months.

https://www.nbcnews.com/health/health-news/fda-clears-astrazenecas-covid-antibody-treatment-immunocompromised-rcna8130