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Case Counts in the US

As of January 11, 2017 (5 am EST)

  • Zika virus disease and Zika virus congenital infection are nationally notifiable conditions.
  • This update from the CDC Arboviral Disease Branch includes provisional data reported to ArboNET for January 01, 2015 – January 11, 2017.

US States

  • Locally acquired mosquito-borne cases reported: 216
  • Travel-associated cases reported: 4,649
  • Laboratory acquired cases reported:  1
  • Total: 4,866
    • Sexually transmitted: 38
    • Guillain-Barré syndrome: 13

US Territories

  • Locally acquired cases reported: 35,280
  • Travel-associated cases reported: 135
  • Total: 35,415*
    • Guillain-Barré syndrome: 50

*Sexually transmitted cases are not reported for US territories because with local transmission of Zika virus it is not possible to determine whether infection occurred due to mosquito-borne or sexual transmission.

Laboratory-confirmed Zika virus disease cases reported to ArboNET by state or territory — United States, 2015–2017 (as of January 11, 2017)§
States Travel-associated cases*
No. (% of cases in states)
(N=4,650)
Locally acquired cases†
No. (% of cases in states)
(N=216)
Alabama 30    (1) 0    (0)
Arizona 52    (1) 0    (0)
Arkansas 15    (<1) 0    (0)
California 393  (8) 0    (0)
Colorado 49    (1) 0    (0)
Connecticut 58    (1) 0    (0)
Delaware 17    (<1) 0    (0)
District of Columbia 31    (1) 0    (0)
Florida 833  (18) 210    (97)
Georgia 106  (2) 0    (0)
Hawaii 16    (<1) 0    (0)
Idaho 4      (<1) 0    (0)
Illinois 90    (2) 0    (0)
Indiana 50    (1) 0    (0)
Iowa 21    (<1) 0    (0)
Kansas 19    (<1) 0    (0)
Kentucky 31    (1) 0    (0)
Louisiana 35    (1) 0    (0)
Maine 13    (<1) 0    (0)
Maryland 129  (3) 0    (0)
Massachusetts 117  (3) 0    (0)
Michigan 65    (1) 0    (0)
Minnesota 64    (1) 0    (0)
Mississippi 23    (1) 0    (0)
Missouri 35    (1) 0    (0)
Montana 7      (<1) 0    (0)
Nebraska 13    (<1) 0    (0)
Nevada 19    (<1) 0    (0)
New Hampshire 12    (<1) 0    (0)
New Jersey 173  (4) 0    (0)
New Mexico 9      (<1) 0    (0)
New York 997  (21) 0    (0)
North Carolina 86    (2) 0    (0)
North Dakota 2      (<1) 0    (0)
Ohio 82    (2) 0    (0)
Oklahoma 29    (1) 0    (0)
Oregon 42    (1) 0    (0)
Pennsylvania†† 167  (4) 0    (0)
Rhode Island 50    (1) 0    (0)
South Carolina 54    (1) 0    (0)
South Dakota 2      (<1) 0    (0)
Tennessee 59    (1) 0    (0)
Texas 290  (6) 6    (3)
Utah 20** (<1) 0    (0)
Vermont 11    (<1) 0    (0)
Virginia 107  (2) 0    (0)
Washington 62    (1) 0    (0)
West Virginia 11    (<1) 0    (0)
Wisconsin 48    (1) 0    (0)
Wyoming 2      (<1) 0    (0)
     
Territories Travel-associated cases*
No. (% of cases in territories)
(N=135)
Locally acquired cases†
No. (% of cases in territories)
(N=35,280)
American Samoa 1      (1) 114          (<1)
Puerto Rico 132  (98) 34,249*** (97)
US Virgin Islands 2      (2) 917          (3)
§Only includes cases meeting the probable or confirmed CSTE case definition and does not include asymptomatic infections unless the case is a pregnant woman with a complication of pregnancy
*Travelers returning from affected areas, their sexual contacts, or infants infected in utero
†Presumed local mosquito-borne transmission
††One additional case acquired through laboratory transmission
**Includes one case with unknown route of person-to-person transmission.
***The Puerto Rico Department of Health is retroactively reporting cases, resulting in larger than normal increases in cases in recent weeks.
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