TNF and infection: Although we did not find supporting evidence on the use of these drugs in the treatment of infections caused by Yersinia enterocolitica, Helicobacter pylori kx2 strain, and Enterohemorrhagic Escherichia coli, the potential use of TNF- blockers such as Etanercept and Infliximab in the treatment of infection caused by these four pathogens may be worth investigating.