Statistics and Maps – 2021

Dengue cases in the US

  • Dengue virus disease became a nationally notifiable condition in 2010.
  • Cases are reported to CDC by state, territorial, and local health departments using standard case definitions.

Provisional data* as of  September 1, 2021

  • This webpage contains provisional data reported to ArboNET for 2021.

US States

  • 32 dengue cases reported

US Territories

  • 367 dengue cases reported

States and territories reporting dengue cases – United States, 2021 (as of September 1, 2021)

Map of the United States showing Laboratory-positive travel-associated and locally-acquired dengue cases. See table below.

*CDC reports provisional dengue case counts reported to ArboNET for the United States and its   territories on the first Thursday of each month.

Table 1: Dengue cases reported to ArboNET by state or territory of residence – United States, 2021 (as of September 1, 2021)

Laboratory-positive travel-associated and locally-acquired dengue cases from the 50 states and territories – United States
Travel-associated cases
No. (%)
Locally-transmitted cases
No. (%)
State  (N=32) (N=0)
Arizona 5 (16) 0 (-)
California 4 (13) 0 (-)
Colorado 2 (6) 0 (-)
Florida 5 (16) 0 (-)
Louisiana 1 (3) 0 (-)
Maryland 1 (3) 0 (-)
Michigan 2 (6) 0 (-)
Nebraska 2 (6) 0 (-)
New Jersey 1 (3) 0 (-)
Ohio 2 (6) 0 (-)
Oregon 2 (6) 0 (-)
Pennsylvania 1 (3) 0 (-)
Rhode Island 1 (3) 0 (-)
Texas 3 (9) 0 (-)

 

Laboratory-positive travel-associated and locally-acquired dengue cases from US territories
Travel-associated cases
No. (%)
Locally-transmitted cases
No. (%)
Territories (N=2) (N=365)
Guam 0 (0) 1 (0)
Puerto Rico 2 (100) 364 (100)