Mosquito-Borne Diseases
Mosquitoes are vectors for diseases, which means they can transmit diseases from one human or animal to another. The mosquito population is hard to control, and they often develop resistance to insecticides, making the containment and elimination of mosquito-borne diseases difficult. According to the American Mosquito Control Association, more than one million people worldwide die from mosquito-borne diseases every year.
The increase of global travel has brought diseases once uncommon or unheard of in the United States to our shores. Outbreaks of mosquito-borne illnesses such as the Zika Virus, Chikungunya, Dengue Fever and West Nile Virus have become more commonplace in recent years. Infected mosquito vectors in Alabama have been documented carrying other serious diseases such as Eastern Equine Encephalitis, Saint Louis Encephalitis, and La Crosse Encephalitis.
Check here often for the latest information and resources on mosquito-borne illnesses in Alabama.
What's New?
- CDC Press Kit: Mosquito-borne Diseases
- CDC Mosquito Control at Home (Indoor Spraying) English | Spanish
- CDC Mosquito Control at Home (Get Rid of Mosquitoes at Home) English | Spanish
- Protective measures are urged to fight West Nile virus
- CDC Update: Zika Virus in the U.S.
- Zika Virus Video Contest for Alabama Teens
- ArboNET Disease Maps
- "Skeeter Beaters" Coloring Book (3 MB) | en Español (2.8 MB)
- Webcasts:
Zika Virus: Information for Elected Officials
Zika Virus: An Update for Clinicians
Zika Virus: Information for Clinicians
Zika Virus: Information for Travelers
For an overview on Zika Virus, statistics, and resources, visit Zika Virus.
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Cases Reported Year-To-Date* |
Total of Cases by Year Reported |
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Mosquito-Borne Disease |
2023 |
2022 |
2021 |
2020 |
2019 |
2018 |
|
California serogroup viruses (California encephalitis, Jamestown Canyon, Keystone, La Crosse, Snowshoe hare, Trivittatus viruses) |
0 |
0 |
0 |
1 |
0 |
0 |
|
Chikungunya - travel related, acquired out of state |
1 |
0 |
0 |
0 |
0 |
0 |
|
Dengue - travel related, acquired out of state |
1 |
5 |
1 |
0 |
3 |
2 |
|
Eastern equine encephalitis |
0 |
0 |
0 |
0 |
1 |
0 |
|
Malaria - travel related, acquired out of state |
4 |
7 |
8 |
2 |
9 |
9 |
|
St. Louis encephalitis |
0 |
0 |
0 |
0 |
0 |
0 |
|
West Nile |
1 |
6 |
12 |
9 |
5 |
28 |
|
Yellow Fever |
0 |
0 |
0 |
0 |
0^ |
0 |
|
Zika - travel related, acquired out of state |
0 |
0 |
0 |
0 |
0 |
3 |
|
Total |
7 |
18 |
21 |
12 |
18 |
42 |
Note: Counts include finalized investigations among Alabama residents as of May 30, 2023.
*As of MMWR Week 21 (week ending on May 27, 2023)
^The case definition was updated this year for this condition.
For questions or concerns regarding insect-borne disease in Alabama, see the Contact Us page, or email us at [email protected].
Page last updated: May 31, 2023
