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.
Bar chart showing the frequency of common contaminants and viruses of unknown neurotropic property (human herpes virus 8 and Torque teno virus) found in cerebrospinal fluid (CSF) samples by both DNA and RNA workflow and viruses in negative control CSF. Abbreviations: ds, double-stranded; ss, single-stranded.
