21 Apr 2015 --- DuPont Diagnostics, a part of DuPont Nutrition & Health, has signed an exclusive distribution agreement with VWR , a leading, global, independent provider of products, services and solutions to laboratory and production facilities. This agreement allows VWR exclusive rights within the United States to sell the DuPont BAX System Q7 instrument, assays and related products as its only PCR-based pathogen detection solution to the food industry.