The monoclonal antibodies by Eli Lilly just received an EUA, and Regeneron’s Casirivimab and Imdevimab Antibody Cocktail for COVID-19 is First Combination Therapy to Receive FDA Emergency Use Authorization. It is the first treatment of any kind to have prospectively confirmed and statistically significant anti-viral activity against SARS-CoV-2 virus.
The team coaches or front office probably could-
"Covered entities under HIPAA are health care clearinghouses, certain health care providers, and health plans. ... Neither employers nor other group health plan sponsors are defined as covered entities under HIPAA."
So the team doctor, trainers, physical therapists, etc. cannot disclose the info to the public, but they can inform the team (Owner, GM, coaches) who are employers. They are not bound by HIPAA, but often don't spell out such issues anyway.