According to the U.S Centers for Disease Control, there have been 5,381 symptomatic Zika virus disease cases reported January 1, 2015 – July 12, 2017 in the United States. Of these, 5,109 cases were travelers returning from affected areas, 224 cases were acquired through presumed local mosquito-borne transmission, 48 cases were acquired through other routes, including sexual transmission (46), laboratory transmission (1), and person-to-person through an unknown route (1). There have been 36,975 symptomatic Zika virus disease cases reported in U.S. territories. Of these, nearly all (36,828 cases) were acquired through presumed local mosquito-borne transmission, with 147 cases acquired through travel from affected areas.

The total Zika case counts for 2017 (as of July 12, 2017) are 163 cases in U.S. states and 522 in U.S. territories. For 2016, the total case counts are 5,102 cases in U.S. states and 36,079 in U.S. territories. For 2015, the total case counts are 61 cases in U.S. states and 9 cases in U.S. territories.

Explore the maps below to learn more.

Zika in the United States: 2017

 

Zika in the United States: 2016

 

Zika in the United States: 2015

 

Credit: Maps courtesy of the Centers for Disease Control and Prevention (CDC)