ParasiteA decade in the future, humanity thrives in the absence of sickness and disease. We owe our good health to a humble parasitea genetically engineered tapeworm developed by the pioneering SymboGen Corporation. When implanted, the tapeworm protects us from illness, boosts our immune system, and even secretes designer drugs. It's been successful beyond the scientists' wildest dreams. Now, years on, almost every human being has a SymboGen tapeworm living