Agarose gel electrophoretic separation of ethidium bromide-stained second-round PCR products obtained using PAN EGHV primers 6784/6788 then EGHV2-specific primers 6786/6787 (300-bp). Lanes1, 8 and 13, human placental DNA negative controls (HPD); Lanes 2 to 7, Case #NAP27 undiluted DNA samples; 2, whole blood; 3, colon; 4, kidney; 5, liver; 6, spleen. Lanes 9 to 12, Case #NAP22 undiluted DNA samples; 9, whole blood; 10, heart; 11, intestine; 12, spleen. The two outside lanes show a 250-bp multimer size marker ladder.