Peanut and peanut butters are required to be inspected specifically for aflatoxin. It is no longer believed to be a concern in commercial preparations. It may be a problem if small private growers sell moldy nuts direct to small buyers, like health food stores, for sale as is or as peanut butter.
Affordable, FDA-approved kit that comes complete with everything you need to determine your blood type, including instructions, finger lancet and alcohol prep, plastic applicator sticks and testing card.