Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Electrophoresis gel images showing (a) genomic DNA integrity after DNA extraction, using 1 Kb DNA Ladder (Invitrogen, Carlsbad, USA) as marker; absence of amplicon in samples 01 to 05 using specific primers to BPV-1 (b), BPV-2 (c), and BPV-4 (d); absence of amplicon in samples 01 to 05, using Delta-Epsilon (e) and Xi (f) degenerate primers. Images (b)–(f) showed amplification only in positive control, with the 100 bp DNA Ladder (Invitrogen, Carlsbad, USA) being employed as marker.
