Official map finds Zika-transmitting mosquitoes in much of US

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Fighting Zika threat

NEW YORK (Thomson Reuters Foundation) - Mosquitoes that can transmit the Zika virus have been found to live in nearly all U.S. states, according to maps released this week by authorities trying to assess the public health threat.

The maps show the two breeds of virus-carrying mosquitoes, the yellow fever and the Asian tiger mosquito, can live in the nation's northernmost states of Michigan, New Hampshire, Washington state and Minnesota, according to the U.S. Centers for Disease Control and Prevention (CDC).

Zika, which has been linked to numerous cases of the birth defect microcephaly in Brazil, has spread rapidly in Latin America and the Caribbean. Microcephaly is marked by small head size that can lead to severe developmental problems in babies.

In the United States, Zika has only been found in the territories of Puerto Rico, American Samoa and the U.S. Virgin Islands.

50 cities with the most risk of Zika:

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50 cities with the most risk for Zika
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Official map finds Zika-transmitting mosquitoes in much of US

#50. Midland, Texas

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

Photo courtesy: Getty

#49. Yuma, Ariz.

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

Photo courtesy: Getty

#48. Laredo, Texas

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

Photo courtesy: Getty

#47. El Paso, Texas

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

Photo courtesy: Getty

#46. Bakersfield, Calif.

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

Photo courtesy: Getty

#45. Albuquerque, New Mexico

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

Photo courtesy: Getty

#44. Tucson, Ariz.

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

Photo courtesy: Getty

#43. Salt Lake City, Utah

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

Photo courtesy: Getty

#42. Fresno, Calif.

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

Photo courtesy: Getty

#41. Las Vegas, Nev.

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

Photo courtesy: Getty

#40. Sacramento, Calif.

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

Photo courtesy: Getty

#39. San Antonio, Texas

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

Photo courtesy: Getty

#38. Denver, Colo.

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

Photo courtesy: Getty

#37. San Diego, Calif.

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

Photo courtesy: Getty

#36. Phoenix, Ariz.

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

Photo courtesy: Getty

#35. Montgomery, Ala.

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

Photo courtesy: Getty

#34. Huntsville, Ala.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#32. Fayetteville, Ark.

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

Photo courtesy: Getty

#31. Jackson, Miss.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#29. Little Rock, Ark.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#27. Birmingham, Ala.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#23. Oklahoma City, Okla.

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

Photo courtesy: Getty

#22. Memphis, Tenn.

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

Photo courtesy: Getty

#21. Nashville, Tenn.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#18. Dallas, Texas

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#14. Los Angeles, Calif.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#12. Tallahassee, Fla.

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

Photo courtesy: Getty

#11. Mobile, Ala.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#7. Houston, Texas

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

Photo courtesy: Getty

#6. Jacksonville, Fla.

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

Photo courtesy: Getty

#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

Photo courtesy: Getty

#4. Brownsville, Texas

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

Photo courtesy: Getty

#3. Tampa, Fla.

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

Photo courtesy: Getty

#2. Orlando, Fla.

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

Photo courtesy: Getty

#1. Miami, Fla.

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

Photo courtesy: Getty

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The mosquitoes, whose scientific names are Aedes aegypti and Aedes albopictus, were concentrated most heavily in the U.S. Southeast and Southwest, according to the CDC maps that break each state down to its individual counties.

The maps utilized data back to 1995, including information from the CDC, university researchers and local health departments.

The Asian tiger mosquito, which lives in semi-rural settings, was captured at least once in 40 states, while the yellow fever mosquito, which prefers urban areas, was found in 26 states, the CDC said.

Overall, they were found in roughly a third of the 3,141 counties in the United States, it said.

"Accurate and up-to-date information for the geographical ranges of Ae. aegypti and Ae. albopictus in the United States is urgently needed," authors of a paper containing the maps wrote this week in the Journal of Medical Entomology.

On Thursday, the World Health Organization advised women living in areas where Zika is being transmitted to delay getting pregnant, advice already given by several countries where the virus is in widespread transmission.

The connection between Zika and microcephaly came to light last fall in Brazil, which has confirmed more than 1,400 cases of microcephaly it considers to be related to Zika infections in mothers.

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