Related Experiment Video
Updated: Jan 31, 2026

Detection of Foodborne Bacterial Pathogens from Individual Filth Flies
Published on: February 13, 2015
The Use of Multiplex Real-Time PCR for the Simultaneous Detection of Foodborne Bacterial Pathogens
Alejandro Garrido-Maestu1, David Tomás Fornés2, Marta Prado Rodríguez3
1Department of Life Sciences, Food Quality and Safety Research Group, International Iberian Nanotechnology Laboratory, Braga, Portugal. alejandro.garrido@inl.int.
Abstract:
Foodborne pathogens continue to be a major health issue worldwide. Culture-dependent methodologies are still considered the gold-standard to perform pathogen detection and quantification. These methods present several drawbacks, such as being time-consuming and labor-intensive. The implementation of real-time PCR has allowed to overcome these limitations and even reduce costs associated with the analyses, due to the possibility of simultaneously and accurately detecting several pathogens in one single assay, with results comparable to those obtained by classical approaches. In this chapter a protocol for the simultaneous detection of two of the most important foodborne pathogens, Salmonella spp. and Listeria monocytogenes, is described.
Related Concept Videos
Real Time RT-PCR
The real-time quantification of the number of amplified products is...
Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
PCR
Bacterial Signaling
Bacterial Transformation
Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
Defenses Against Pathogens and Herbivores

