From the point of view of the spread of infections lettuce from the store is more dangerous cutlets, say epidemiologists. According to Professor Hugh Pennington, some types of bacteria found in bags of sliced lettuce are almost impossible to destroy.
The only way is through radiation. It follows that vegetables that are packaged in bags and sold in stores under the label “ready to eat” can be harmful to health. As an example, the Professor cites the outbreak of Cryptosporidium infection in England and Scotland associated with the consumption of lettuce leaves, when about 300 people were injured.