You might also see wordsmithing that states a particular vaccine “no longer contains thimerosal as a preservative [emphasis added].” Most would infer that to mean the vaccine is thimerosal-free. Yet it might contain thimerosal left over from the manufacturing process. Just not as a preservative. If your child has a peanut allergy, would it be okay for products that may contain small amounts of peanut dust to be labeled in a way that implies there isn’t any?
