RT Journal Article SR Electronic(1) A1 O’Brien, S A1 de Valk, H YR 2003 T1 Salmonella - "old" organism, continued challenges ! JF Eurosurveillance VO 8 IS 2 SP 29SP 397 OP 31 DO https://doi.org/10.2807/esm.08.02.00397-en UL https://www.eurosurveillance.org/content/10.2807/esm.08.02.00397-en