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.
Joel Stokdyk, LIDE Biologist, prepares a sample for quantitative polymerase chain reaction (qPCR) analysis. qPCR uses fluorescence to quantify the detection of nucleic acids from a targeted pathogen.
Public Domain.
