Global Foodborne Infections Network (GFN) National and Regional Projects
The Salmonella Schwarzengrund project
Serotype Schwarzengrund was noted as an emergent serotype in Asia, as well as, some Western nations in the WHO Global Salm-Surv publication "Salmonella serovars from humans and other sources in Thailand, 1993-2002. Emerg Infect Dis. 2004 Jan;10(1):131-6." From 2004 to 2005, 314 isolates from Asia, Europe, and North America were collected and investigated at the Danish Institute for Food and Veterinary Research. Investigation into Salmonella Schwarzengrund suggested that trade and foreign travel were related to its emergence.
Reference: Aarestrup FM, Hendriksen RS, Lockett J, Gay K, Teates K, McDermott PF, White DG, Hasman H, Sørensen G, Bangtrakulnonth A, Pornreongwong S, Pulsrikarn C, Angulo FJ, Gerner-Smidt P. International spread of multidrug-resistant Salmonella Schwarzengrund in food products. Emerg Infect Dis. 2007 May;13(5):726-31.
The Salmonella Corvallis project
Hospital infections, extended-spectrum beta-lactamase resistance producing strains containing the gene SHV 2, and its rank as the third most reported serotype among humans in Bulgaria for a number of years made Salmonella Corvallis a pathogen of interest for reference testing at the Danish Institute for Food and Veterinary Research in 2004. A comparison between 243 Corvallis strains collected from Bulgaria, Thailand and Denmark was conducted. The poster "Molecular characterization and occurrence of extended-spectrum beta-lactamase resistance genes among Salmonella enterica serovar Corvallis from Thailand, Bulgaria and Denmark" was presented at the Agriculture's Role in Managing Antimicrobial Resistance Conference in Toronto, 2005.
Reference: Archambault M, Petrov P, Hendriksen RS, Asseva G, Bangtrakulnonth A, Hasman H, Aarestrup FM. Molecular characterization and occurrence of extended-spectrum beta-lactamase resistance genes among Salmonella enterica serovar Corvallis from Thailand, Bulgaria, and Denmark. Microb Drug Resist. 2006 Fall;12(3):192-8.
The Belarus project
A high incidence of salmonellosis in young children from the region of Gomel, Belarus was reported to the Danish Institute for Food and Veterinary Research in 2004. After investigating 35 strains, results suggested a spread of very closely related clones based on pulse field gel electrophoresis and multilocus variable-number tandem-repeat analysis (MLVA) typing. These strains were highly resistant and contained the CTX-M15 gene.
Reference: Results were presented at the Republican Conference on Infectious Diseases in May 2005 in Gomel, Belarus.
Reference: Tapalski D, Hendriksen RS, Hasman H, Ahrens P, Aarestrup FM, 2007. Molecular characterisation of multidrug-resistant Salmonella enterica serovar Typhimurium isolates from Gomel region, Belarus. Clin Microbiol Infect. 13(10):1030-3.
The Thailand Campylobacter project
In 2004, assistance to determine the minimum inhibitory concentration (MIC) in 50 isolates of Campylobacter spp. was requested by a WHO Global Salm-Surv member from the Armed Forces Research Institute of Medical Sciences (AFRIMS) in Thailand. Strains were tested using agar dilution against chloramphenicol, streptomycin, gentamicin, tetracycline, azithromycin, erythromycin, nalidixic acid and ciprofloxacin. All isolates were somewhat resistant against streptomycin, tetracycline, azithromycin, erythromycin, nalidixic acid and ciprofloxacin.
Reference: No data has been published.