Bacterial genus that includes the human pathogen Listeria monocytogenes, which enters our digestive system along with contaminated raw food. Although Listeria are widespread, the number of  diseases is low as the immune system normally fights the pathogen efficiently. If the immune system is compromised, however, meningitis or sepsis that may turn lethal could result. Pregnant women can potentially miscarry if they are infected by Listeria.


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