Fig. 2From: Alternative use of phage display: phage M13 can remain viable in the intestines of poultry without causing damageLevels of antibody (measured by absorbance) anti-M13 in birds of the different treatment groups. G1: Group inoculated with phage M13; G2: Group inoculated with E. coli ER2738 infected with phage M13; G3: Group infected by E. coli ER2738; G4: Group inoculated with PEG; G5: Group inoculated with PBS. Control: plate sensitised with phage without serum. No differences were found (P > 0.05) by Tukey’s testBack to article page