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Why aren't items like Romaine lettuce labelled to make it easy to find out the seller immediatlely in case of contamination?
https://www.nytimes.com/2018/11/20/health/romaine-ecoli-outbreak-cdc.html
With other products, there are many pieces of identification ( which country, the company, etc. there’s no problem. Why is it is not the case with some items?
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