An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Photos

Snapshots of what’s happening in the Defense Department.

A Navy researcher wearing plastic gloves opens a container on a shelf in a lab.

Quality Control

Maren Fitzpatrick, a research associate with Naval Medical Research Command’s Biological Defense Research Directorate, performs DNA sample quality control in preparation for a sequencing run in Frederick, Md., March 22, 2024. Sequencing data may be used to support surveillance of outbreaks, helping to identify and characterize the causes and potential resistance to existing medical countermeasures.

Photo Gallery