Most Hawaiian papaya is now genetically engineered to be resistant to ringspot virus. Mounting research now shows that animals fed genetically engineered foods, such as corn and soy, suffer a wide range of maladies, including intestinal damage, multiple-organ damage, massive tumors, birth defects, premature death, and near complete sterility by the third generation of offspring. GE papaya is banned in the EU.
Stay away from anything GMO. Actually, stay away from anything that was added for the convenience of the manufacturer, including any GMO foodstuffs.