American Cities Most at Risk of Zika Virus
American Cities Most at Risk of Zika Virus

by Natalie Morin

HeathGrove's research analytics has identified the 50 U.S. cities that would likely be most afflicted with Zika.

A recent poll revealed that Americans don't know much about the Zika virus -- a disease that many South American countries believe is a serious threat. Of the few who have some knowledge of Zika, many don't know if the mosquito-borne illness can be passed on or if it's treatable, according to a survey done by The Associated Press-NORC Center for Public Affairs Research.

This lack of awareness and understanding could potentially pose a problem, as Zika is slowly-but-surely prowling towards the United States. If the virus does penetrate more of the country (346 U.S. cases have already been reported to be brought in from abroad) HeathGrove found the 50 cities that would likely be most afflicted with Zika.

Using data from a recent study in the Public Library of Science (PLOS) HeathGrove considered five factors that would warrant a high risk for a Zika epidemic:

- Counties with recent local Dengue and/or Chikungunya transmission
- Potential abundance of Aedes aegypti mosquitoes (known to carry the virus) in January and July, classified as None, Low, Moderate, or High
- Estimated monthly average arrivals to the U.S. from countries on the CDC Zika travel advisory
- Population

HealthGrove then weighted all of these factors (in the order listed above) to calculate an overall "risk level" of a Zika epidemic in each city, scored out of 10. The city with the highest risk level had the score closest to 10.

When studying the results, the health site found that the biggest risk areas in the United States are in the South and Southeast--particularly Florida and its surrounding states. These warm, humid climates are ideal for mosquitoes to thrive. They also receive many visitors from South and Central America (where many countries plagued with Zika are found) due to their relative proximity.

The risk levels were rounded to the nearest hundredth place, though their ranking reflects each city's unrounded score. In the case of a true tie, the tie goes to the city with a higher population.

 

50. Midland, TX

Risk level: 1.38

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 161,290

 

49. Yuma, AZ

Risk level: 1.38

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 203,247

 

48. Laredo, TX

Risk level: 1.38

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 266,673

 

47. El Paso, TX

Risk level: 1.41

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 836,698

 

46. Bakersfield, CA

Risk level: 1.42

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 874,589

 

45. Albuquerque, NM

Risk level: 1.42

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 904,587

 

44. Tucson, AZ

Risk level: 1.42

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,004,516

 

43. Salt Lake City, UT

Risk level: 1.43

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,153,340

 

42. Fresno, CA

Risk level: 1.93

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 965,974

 

41. Las Vegas, NV

Risk level: 1.99

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 2,069,681

 

40. Sacramento, CA

Risk level: 2

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 2,244,397

 

39. San Antonio, TX

Risk level: 2.03

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 2,328,652

 

38. Denver, CO

Risk level: 2.2

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 2,754,258

 

37. San Diego, CA

Risk level: 2.4

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 3,263,431

 

36. Phoenix, AZ

Risk level: 2.89

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 4,489,109

 

35. Montgomery, AL

Risk level: 3.92

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 373,141

 

34. Huntsville, AL

Risk level: 3.94

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 441,086

 

33. Shreveport, LA

Risk level: 3.95

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 445,142

 

32. Fayetteville, AR

Risk level: 3.97

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 501,653

 

31. Jackson, MS

Risk level: 4

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 577,564

 

30. Augusta, GA

Risk level: 4

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 583,632

 

29. Little Rock, AR

Risk level: 4.24

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 729,135

 

28. Columbia, SC

Risk level: 4.36

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 800,495

 

27. Birmingham, AL

Risk level: 4.93

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,143,772

 

26. Raleigh, NC

Risk level: 5.09

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,242,974

 

25. Richmond, VA

Risk level: 5.12

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,260,029

 

24. Louisville, KY

Risk level: 5.13

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,269,702

 

23. Oklahoma City, OK

Risk level: 5.25

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,336,767

 

22. Memphis, TN

Risk level: 5.26

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,343,230

 

21. Nashville, TN

Risk level: 6

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,792,649

 

20. Kansas City, MO

Risk level: 6.04

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 2,071,133

 

19. St. Louis, MO

Risk level: 6.13

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 2,806,207

 

18. Dallas, TX

Risk level: 7.11

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 500,000-1,000,000
Population: 6,954,330

 

17. Charlotte, NC

Risk level: 7.38

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 2,380,314

 

16. Washington, D.C.

Risk level: 7.86

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 6,033,737

 

15. Philadelphia, PA

Risk level: 7.86

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: 10,000-500,000
Population: 6,052,170

 

14. Los Angeles, CA

Risk level: 7.93

Mosquito level in January: None
Mosquito level in July: Low
Number of people traveling to the U.S. from Zika countries: 500,000-1,000,000
Population: 13,262,220

 

13. Savannah, GA

Risk level: 7.99

Mosquito level in January: None
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 372,708

 

12. Tallahassee, FL

Risk level: 7.99

Mosquito level in January: None
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 375,751

 

11. Mobile, AL

Risk level: 8

Mosquito level in January: None
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 415,123

 

10. Charleston, SC

Risk level: 8

Mosquito level in January: None
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 727,689

 

9. New Orleans, LA

Risk level: 8.01

Mosquito level in January: None
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,251,849

 

8. Atlanta, GA

Risk level: 8.13

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: 500,000-1,000,000
Population: 5,614,323

 

7. Houston, TX

Risk level: 8.14

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: 500,000-1,000,000
Population: 6,490,180

 

6. Jacksonville, FL

Risk level: 8.38

Mosquito level in January: Low
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 1,419,127

 

5. New York, NY

Risk level: 8.49

Mosquito level in January: None
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: 1,000,000-2,000,000
Population: 20,092,883

 

4. Brownsville, TX

Risk level: 8.86

Mosquito level in January: Low
Mosquito level in July: Moderate
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 420,392

 

3. Tampa, FL

Risk level: 9.14

Mosquito level in January: Low
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: <10,000
Population: 2,915,582

 

2. Orlando, FL

Risk level: 9.43

Mosquito level in January: Low
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: 500,000-1,000,000
Population: 2,321,418

 

1. Miami, FL

Risk level: 10

Mosquito level in January: Moderate
Mosquito level in July: High
Number of people traveling to the U.S. from Zika countries: 1,000,000-2,000,000
Population: 5,929,819

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