Public Health > About > Divisions > Mosquito & Vector Control Division

About Mosquito-Borne Diseases

The Office of Epidemiology, Surveillance, and Emerging Diseases (OESED) provides disease surveillance, data analysis and interpretation, education, and guidance for healthcare providers and community partners. OESED offers resources within the community to decrease transmission of any high-incidence disease or a new emerging disease posing a threat to Harris County. This office collaborates with the Mosquito and Vector Control Division to conduct routine surveillance on multiple mosquito-borne diseases, including West Nile Virus (WNV), Dengue, Chikungunya, St. Louis encephalitis, and Zika. OESED complements this work by monitoring and investigating human cases, analyzing trends, and supporting public health response and community outreach efforts.

Mosquito Control Education Programs

HCPH Mosquito Control provides FREE education and outreach services to area school districts, libraries, civic associations , community groups and other Harris County community members.

Community Prevention Presentations

A Mosquito Control representative will speak to your civic association or community group about mosquitoes, the role of the HCPH Mosquito Control in controlling disease-carrying mosquitoes, provide helpful tips on mosquito development site reduction, and effective personal protective measures against biting mosquitoes.

For more information contact:

Harris County Public Health
Mosquito & Vector Control Division
3330 Old Spanish Trail, Bldg. D
Houston, Texas 77021
Phone: (713) 440-4800
Fax: (713) 440-4795

To schedule an education program, please contact the Education/Training Office by phone at (832) 671-1918 or by email.

Mosquito & Vector Borne Resources

Harris County Public Health reminds you to protect yourself and your loved ones by following these simple steps:

Reduce mosquito breeding sites around your home by emptying, removing, or covering any water-holding containers.
Use an EPA-registered insect repellent when outdoors.
If possible, wear light-colored clothing, long-sleeve shirts, pants, and socks.

Check the links below for prevention tips, mosquito-borne disease information, and other resources. Visit our live maps for current mosquito-borne disease and treatment activities in Harris County.

Learn more by reviewing this interactive dashboard of human disease counts in unincorporated Harris County