Fig 1.
Methodological graphical scheme illustrating the functioning of RASNEX and the structure of this paper.
Fig 2.
(A) The RASNEX 1.0 workflow is divided into 4 parts: 1) Importing RASFF notification(s), 2) extraction, 3) mapping of operators involved in the different supply chains, 4) displaying the results on a webpage and generating the output. (B) Exemplary anonymized RASNEX 1.0 output sheet on the consignment providing information on the structure of different supply chains. (C) Graphical mapping of a chicken egg fipronil contamination incident from 2017/2018 using GIS showing 39 operators, which are part of ten different supply chains, located in seven central European countries and categorized into nine operator types.
Table 1.
Overview of the sections of a RASFF notification extracted and compiled as RASNEX 1.0 output Sheets 1–5.
Fig 3.
Three types of food safety hazards in the chicken egg supply network analyzed by RASNEX 1.0 from 222 RASFF notifications: fipronil (blue), Salmonella spp. (red) and other contamination events (green). (A) Venn diagram indicating the number of operators involved in one hazard type as well as their intersections (numbers involved in more than one of those food safety hazards). (B) Distribution by operator type involved in each hazard in the chicken egg supply network. Columns by contamination type add up to more than 100% since some actors appear as different operator types. (C) Geographic Information System (GIS) map for each hazard type in the European chicken egg supply network. It comprises 540 unique operators, which are part of different supply chains and are located in seven Central European countries.
Fig 4.
Categorization into 15 operator types (color-coded) using RASNEX 1.0 to analyze 222 RASFF notifications mapped using a Geographic Information System (GIS).
It visualizes a total of 540 unique operators of various flows of food products, located in 40 countries and comprises information contained in RASFF for several food safety hazards on operators reported to be part of a European chicken egg supply network.