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Pregnant Women with Any Lab Evidence of Zika Virus Infection*

  • US States and DC: 1,617
  • US Territories: 3,363

*Source: Pregnancy Registries as of March 14, 2017

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Zika Virus Disease Cases Reported to ArboNET*

  • US States and DC: 5,158
  • US Territories: 38,212

*Source: ArboNET as of March 22, 2017

More on Zika

The CDC Emergency Operations Center (EOC) can be activated in response to natural or manmade disasters, disease outbreaks, and other public health emergencies. Since its inception in September 2001, the EOC has responded to more than 62 public health threats, including hurricanes, foodborne disease outbreaks, the 2009 H1N1 influenza pandemic, and the Haiti cholera outbreak.

Current Activations:


Did you know? The CDC EOC has been activated more than 91% of the time in the last 7 years.

COCA prepares clinicians to respond to emerging health threats and public health emergencies by communicating relevant, timely information related to disease outbreaks, disasters, terrorism events, and other health alerts.
Learn more about COCA

CDC's Health Alert Network (HAN) is CDC's primary method of sharing cleared information about urgent public health incidents with public information officers; federal, state, territorial, and local public health practitioners; clinicians; and public health laboratories. 

Learn more about  HAN


CDC works 24/7 with state and local health departments to save lives and safeguard communities from public health threats. When states are prepared to detect or respond rapidly to threats, communities are better protected. CDC plays a critical role in preparing states because of its unique expertise in responding to infectious, occupational, or environmental incidents.

•  Our Role

•  Our Organization

•  Our Leadership

•  Our Funding

2016 Report Cover The 2016 National Snapshot of Public Health Preparedness demonstrates how federal investments enhance our nation’s ability to respond to public health threats and emergencies.