<prompt> A female presents with leaking and meconum stained liquior at 32 weaks. She is infected withCMVListeriaToxoplasmaHerpes  <response>: Discolored brownish or meconium stained amniotic fluid is common with fetal infection, even with preterm gestationHence, the correct answer is Listeria, rest of the infections do not lead to preterm labour with meconium stained liquor.ListeriosisCausative organism- listeria monocytogenes facultative intracellular gram positive bacillusMode of infection- Food-borne infection caused by eating food like raw vegetables, Coleslaw, Apple cider, Melons, Milk, Fresh mexican style cheese, Smoked fish, Processed foods.Clinical featuresCan be asymptomaticCan cause febrile illness.Maternal complications which can occur due to listeria infection are:Preterm labor,Chorioamnionitis,Menonium stained liquor,Abortions,Placental MacroabscessesMaternal infection can lead to fetal infection characterised by:Disseminated granulomatous lesions with microabscess in skinStillbirthOverall perinatal mortality-50.ManagementDrug of choice is combination of Ampicillin gentamicin or in case of pencillin allergy Trimethoprim sulfamethoxazoleMaternal treatment may be effective for fetal infectionThere is no vaccine for listeriosis. 