U.S. Agency for International Development seal
Centers for Disease Control seal
Department of Health and Human Services seal
Department of Defense seal
Department of State seal

The United States works at home and abroad to prevent, detect, prepare for, and respond to infectious disease threats, whether these threats occur naturally, accidentally, or intentionally. U.S. national security and prosperity depend on countries around the world being prepared to prevent outbreaks when possible, and to rapidly detect and respond to biological threats when they occur.

The COVID-19 pandemic demonstrated the risk that health security threats pose to individuals, communities, and nations – endangering health, straining health systems, and disrupting economies and livelihoods. Recent outbreaks of mpox, Marburg, cholera and other diseases are a reminder that the risks of infectious diseases are increasing around the world.

Partnering with other countries to stop infectious disease threats at their source, aiming to prevent health emergencies and pandemics, protects Americans and people around the world.

A woman in a lab coat, face mask, and gloves works in a lab.
CDC staff member sets up RT-PCR tests as part of CDC’s
support to Thailand’s Ministry of Public Health
COVID-19 response. (Credit: CDC Thailand, JT Square)
A man in a fluorescent vest holds up a chart.
A community volunteer engaging youth group on
Lassa fever prevention in Toro, Nigeria.
(Credit: USAID’s Breakthrough Action)

U.S. Department of State

The Lessons of 1989: Freedom and Our Future