Judy, I just did a quick google search for mold on fabric. You may consider doing the same, as a myriad of products including vinegar will get rid of the mold, but you may be left with a stain.
I wouldn't throw the fabric, I'd consider over-painting, dyeing, using DeCoulerant, rusting, or other such color changing techniques on fabric that is too badly stained to use as is. The other consideration is just let it hang out for times you need to do practice samples, or maybe fabric rope bowls.
My sincere sympathy for the awful experience you are going through. The whole world watched in horror and you have our prayers.