Background and Objectives: Listeria monocytogenes are known as an emerged foodborne pathogen and considered as a severe health risk. In the present study, prevalence and antibiotic resistance of L. monocytogenes isolated from ready-to-eat meat products in Iran were assessed. Materials and Methods: A total of 200 ready-to-eat meat products, including chicken meat (wing, breast, and leg), lamb a...

Background: One of the most well-known Iranian traditional cheeses is Koozeh. The aim of present work was to evaluate the survival of L. monocytogenes during ripening of Iranian traditional Koozeh cheese made from raw ewe's milk. Methods: A 2-factor experimental design was applied to study the effect of ripening conditions, including different temperatures (4, 9, and 14 °C) and different conce...

most birds probably can carry listeria spp. asymptomatically in their intestines with varying prevalence and can transmit the pathogens to human. the genus-listeria has two pathogenic species namely, l. monocytogenes and l. ivanovii. l. monocytogenes is a well-known cause of abortion, encephalitis and septicaemia in man and animals. l. ivanovii is an animal pathogen and in rare cases cause huma...

abortion can lead to major economic losses. l. monocytogenes and l. ivanovii can cause infertility and abortion. considering the importance of what mentioned, present study was conducted to detection of l. monocytogenes and  l. ivanovii in bovine abortion from shahrekord, iran. vaginal discharge from 36 aborted cows were investigated to  detection of l. monocytogenes and l. ivanovii. the sample...

the objective of this study was to isolation and characterization of listeria species and determines listeria monocytogenes serotypes in fresh fish, shrimp, crab and lobster in isfahan and shahrekord, iran. from september 2010 to april 2011, a total of 300 samples of fresh fish, shrimp, crab and lobster were obtained from randomly selected retail stores in isfahan and shahrekord, iran. the samp...

This study evaluates the effects of fat contents on the thermal resistance, antibiotic sensitivity, and Caco-2 cell invasion of Listeria monocytogenes. Ten strain mixture of L. monocytogenes in milk (0, 1, and 4% fat) and pork sausage patties (10, 20, and 30% fat) were exposed to 63oC. To evaluate effects of fat on the antibiotic sensitivity of L. monocytogenes, the L. monocytogenes strains NCC...

Invasion of endothelial tissues may be crucial in a Listeria monocytogenes infection leading to meningitis and/or encephalitis. Internalization of L. monocytogenes into endothelial cells has been previously demonstrated by using human umbilical vein endothelial cells as a model system. However, during the crossing of the blood-brain barrier, L. monocytogenes most likely encounters brain microva...