Hopefully that will take care of it, might need another round of the vinegar soak. I've been there, can't stand the basement smell but I've had good luck with Borax & vinegar & also used unscented detergents because I have a problem with perfumes, I like Tide Free & Clear best. Those basement smell fabrics should never be used for sick people, I won't even use them for the pet beds I make for animal shelters.
A couple of times I've soaked fabrics overnight with vinegar & borax, that has really helped.