Likewise, the application of organic fertilizer may also influence the survival capacity of E. coli O157:H7 in soils [8,14]. For instance, Unc and Goss [14] reported that E. coli survived longer in soils amended with swine manure. Currently, most reports are concerned with animal manures and/or slurries [6,8,14]. Fertilizers such as peat and oil residue, are main organic fertilizers used worldwide. Little is known about the effect of other kinds of organic fertilizers on the survival of human enteric pathogens in agricultural soils.