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.
Total virus counts obtained after staining with SYBR Gold (final dilution of 5 × 10−5 the commercial stock). The data were corrected for blanks and normalized to SYBR Green I at an identical dye concentration (dotted line). NS 2 represents a natural virus sample.
