An international collaborative study on serotyping and antimicrobial susceptibility testing of eight Salmonella enterica strains was performed to enhance the capacity of national and regional reference laboratories in WHO Global Salm-Surv to conduct Salmonella serotyping and antimicrobial susceptibility testing. A total of 103 laboratories in 60 countries participated. For serotyping, 78% of the results were correct. For susceptibility testing, 91% of the results were in agreement with the expected results. However, 17% of the performed tests with the E. coli ATCC 25922 reference strain were out of the quality control range specified by NCCLS guidelines.
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Danmarks Tekniske Universitet, Fødevareinstituttet, 2002