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[A case of maternal and neonatal infection due to Listeria monocytogenes].

A Listeria monocytogenes infection may develop during pregnancy by eating sausages, fresh meats and milk products derived from infected animals. According to the period in which the infection starts, the pregnancy outcome can be abortion or pre-term or at term delivery. The infection can pass from mother to fetus and can cause a serious neonatal sepsis. Listeriosis in pregnant women can be asymptomatic or may present as an influenza-like syndrome. This case report, along with other published cases, demonstrates how hard is to make a correct diagnosis of listeriosis during pregnancy. Since this is mainly related to the aspecificity of symptoms, it is very important to have a high suspicion and to take a careful patient history.