Zika Virus: Information for States and Territories

At a Glance – Zika in the U.S. (updated 6/14/17*)

U.S. States
Travel-associated Zika virus disease cases reported: 5,020
Locally acquired vector-borne cases reported: 224
Laboratory acquired cases reported: 1
Pregnant Women with Any Lab Evidence of Zika Virus Infection: 1,883
Liveborn infants with birth defectss: 72
Pregnancy losses with birth defects: 8

Of the 5,292 cases (136 in 2017) reported, 46 were sexually transmitted.

U.S. Territories
Total cases reported: 36,590 (505 in 2017)
Travel-associated cases reported:143
Locally acquired cases reported: 36,447
Pregnant Women with Any Lab Evidence of Zika Virus Infection: 3.916  

*Visit CDC.gov for the most up to date information.This webpage contains cumulative provisional data reported to ArboNET since 1/1/2015.


New from ASTHO: Top Questions on Zika: Simple Answers


Zika virus is a mosquito-borne flavivirus transmitted to humans primarily by the Aedes aegypti mosquitoes, the same mosquitoes that transmit dengue, yellow fever, and chikungunya viruses. CDC estimates that 80 percent of Zika cases are asymptomatic. Symptomatic cases usually result in mild illness and symptoms such as acute onset of fever, rash, joint pain, and conjunctivitis. Some evidence suggests severe outcomes such as Guillian-Barre syndrome and microcephaly in infants via maternal-fetal transmission of Zika virus. There is currently no vaccine to prevent or medicine to treat Zika virus. For more information on Zika virus in the United States see CDC's Zika Virus web page: www.cdc.gov/Zika.


ASTHO staff have compiled the following links to selected resources and background materials that were created by state and territorial health departments and national and international sources for use by state health agency leaders. We'll add to these materials periodically.

What's New

Binational Forum on Emerging Mosquito-borne Infectious Diseases along the U.S. -Mexico Border

Under the leadership of Dr. John Hellerstedt, Commissioner of Health, Texas Department of State Health Services, ASTHO helped plan and facilitate a Binational Forum on Emerging Mosquito-borne Infectious Diseases along the U.S. -Mexico border convened under the auspices of the U.S.-Mexico Border Health Commission. The primary purpose of this two-day meeting was to examine cross border communications and response coordination activities important to both countries and develop a draft binational consensus action plan to improve communication and cooperation mechanisms in the areas of epidemiology and disease surveillance, laboratory services, vector surveillance and control, and public education and communications. The meeting took place in El Paso, TX on June 13 and 14, and involved approximately 170 local and state public health representatives from the 10 US and Mexico border states and national/federal leadership from both countries. US and Mexican media coverage of the Forum can be found at:

Reminder: CDC Seeks Comments on Zika Virus Surveillance through Federal Register

CDC, as part of its continuing efforts to reduce public burden and maximize the utility of government information, invites the public and other Federal agencies to take this opportunity to comment on proposed and/or continuing information collections, as required by the Paperwork Reduction Act of 1995. This notice invites comment on an information collection titled ‘‘Zika Virus Enhanced Surveillance of Selected Populations.’’ This information collection will help state health departments better define the public health burden and clinical characteristics of Zika virus disease. Written comments must be received on or before July 31, 2017.

Zika Topic of the Week for June 19 Is “Should You Be Tested for Zika”

The CDC Zika Virus Topic of the Week for June 19-23 is “Should You Be Tested for Zika.” Please share or retweet messages posted on CDC social media channels to make this helpful information available to others. Readers can also download the Zika Topic of the Week widget for their websites in English and Spanish.

June 29 | 3-4:30 p.m. EDT | IHS and CDC to Host Zika Provider Update

The Indian Health Service (IHS) Division of Epidemiology and Disease Prevention, in partnership with CDC subject matter experts, will hold a Clinical Rounds Zika provider update. This event will help participants maintain and increase their understanding of transmission and the current domestic and international situation, especially in Indian country; presentation, diagnosis, management and prevention of Zika virus infection; and implications for pregnant women. Registration is required and available to all interested participants.

July 17-19 | Summer Workshop on Pandemics, Bioterrorism, and Global Health Security: From Anthrax to Zika

Pandemics, Bioterrorism and Global Health Security: From Anthrax to Zika is a three-day, non-credit summer workshop designed to introduce participants to the challenges facing the world at the intersection of national security, public health and the life sciences. The workshop is hosted by the Schar School of Policy and Government at George Mason University. The workshop will be held July 17-19, 2017 in Arlington, VA.