"A bioterrorist attack against the United States is a constant threat with potentially devastating consequences, including mass casualties, economic instability, and damage to critical infrastructure. Established in 2003, the DHS BioWatch Program provides early warning of a bioterrorist attack in more than 30 major metropolitan areas across the country. This early warning helps decision makers plan an effective, coordinated, and rapid response.
BioWatch is managed by the DHS Countering Weapons of Mass Destruction Office."
https://www.dhs.gov/biowatch-program
"The Countering Weapons of Mass Destruction (CWMD) Office was established in December 2017 by consolidating primarily the Domestic Nuclear Detection Office, a majority of the Office of Health Affairs, as well as other DHS elements."
https://www.dhs.gov/topic/biological-security
"Department of Homeland Security (DHS) Science and Technology Directorate (S&T) is developing research-based, mission-driven resources for decision makers and frontline workers to contribute to the nation’s comprehensive COVID-19 response efforts."
https://www.dhs.gov/science-and-technology/battling-invisible-enemy-exhibit
"Battling the Invisible Enemy" News & Multimedia
https://www.dhs.gov/science-and-technology/battling-invisible-enemy-news