Without access to the large collection of bacteria strains from the Gastroenteric Disease Center, it would have been difficult for the researchers to carry out the research, according to DebRoy. The Gastroenteric Disease Center has been collecting E.coli samples since 1965 and is the largest repository of E.coli in North America. The center has 60,000 E.coli strains isolated from cows, birds, pigs, humans, dogs, water and the environment. The center is located in the Department of Veterinary Science, Penn State’s College of Agricultural Sciences, with a web site at: http://ecoli.cas.psu.edu/
Other researchers involved in this project include: Amee Manges, assistant professor, McGill University; Sherry P. Smith, assistant professor, Medical College of Georgia; Meena Ramachandani, School of Public Health, Berkeley; and James Johnson, professor, University of Minnesota.