Risk factors for sporadic Campylobacter infection: an all-Ireland case-control study Danis, K and Di Renzi, M and O’Neill, W and Smyth, B and McKeown, P and Foley, B and Tohani, V and Devine, M, Eurosurveillance, 14, 19123 (2009), https://doi.org/10.2807/ese.14.07.19123-en