Figure 1From: Occurrence of Rickettsia felis in dog and cat fleas (Ctenocephalides felis) from ItalyImage of an acrylamide gel 7% showing PCR amplification of the 401-bp fragment ( gltA rickettsial gene). C+ = positive control; C- = negative control (distilled water); 1–6 = flea samples (1,2,3,4,6 positives); M = molecular weight (100 bp PCR Molecular Ruler, BioRad, Laboratories Inc., Hercules, CA, USA).Back to article page