September 1, 2025
FOR IMMEDIATE RELEASE
BCHD Confirms Mosquito Samples Tests Positive for West Nile Virus
The Brazos County Health District Vector Surveillance Program has confirmed a mosquito sample collected in Brazos County and submitted for testing by the Texas Department of State Health Services Arbovirus Laboratory have tested positive for West Nile Virus (WNV). The mosquito trap that collected the positive sample was located in the 77845-zip code of College Station and the 77802-zip code of Bryan.
These positive mosquito pools make three total for 2025 in the Bryan-College Station. There has been one human case of West Nile Virus reported in Brazos County for 2025.
Please keep in mind that all of Brazos County should be considered positive for WNV and residents should take the necessary steps to reduce exposure to mosquitoes.
The Brazos County Health District (BCHD) conducts Mosquito Surveillance with weekly trapping in both Cities or Bryan and College Station, beginning each May through the end of October to monitor for the presence of West Nile Virus, St Louis Encephalitis Virus, and Eastern Equine Encephalitis Virus.
BCHD staff also collects mosquitoes trapped by members of the Brazos Valley Vector Collaborative (BVVC) in the six adjacent counties of Burleson, Grimes, Leon, Madison, Robertson, and Washington. Traps are set by BVVC members every other week and samples are collected, prepared, and shipped to the Texas DSHS Arbovirus Laboratory in Austin by the BCHD.
Brazos County Health District officials have notified the other members of the Vector Surveillance and Control Partnership along with District members and community partners with the City of Bryan, City of College Station, and Texas A&M University.
Enhanced surveillance including additional traps and larvicide treatments of confirmed breeding habitat in the area of the positive sample collection will begin as specified in the Brazos County Health District Phased Response Guidelines. Residents in all areas of Bryan, College Station, and the Brazos Valley area should empty and eliminate any standing water in containers on their property and ensure that lawn irrigation and onsite sewage systems are functioning properly.
FOR IMMEDIATE RELEASE
BCHD Confirms Mosquito Samples Tests Positive for West Nile Virus
The Brazos County Health District Vector Surveillance Program has confirmed a mosquito sample collected in Brazos County and submitted for testing by the Texas Department of State Health Services Arbovirus Laboratory have tested positive for West Nile Virus (WNV). The mosquito trap that collected the positive sample was located in the 77845-zip code of College Station and the 77802-zip code of Bryan.
These positive mosquito pools make three total for 2025 in the Bryan-College Station. There has been one human case of West Nile Virus reported in Brazos County for 2025.
Please keep in mind that all of Brazos County should be considered positive for WNV and residents should take the necessary steps to reduce exposure to mosquitoes.
The Brazos County Health District (BCHD) conducts Mosquito Surveillance with weekly trapping in both Cities or Bryan and College Station, beginning each May through the end of October to monitor for the presence of West Nile Virus, St Louis Encephalitis Virus, and Eastern Equine Encephalitis Virus.
BCHD staff also collects mosquitoes trapped by members of the Brazos Valley Vector Collaborative (BVVC) in the six adjacent counties of Burleson, Grimes, Leon, Madison, Robertson, and Washington. Traps are set by BVVC members every other week and samples are collected, prepared, and shipped to the Texas DSHS Arbovirus Laboratory in Austin by the BCHD.
Brazos County Health District officials have notified the other members of the Vector Surveillance and Control Partnership along with District members and community partners with the City of Bryan, City of College Station, and Texas A&M University.
Enhanced surveillance including additional traps and larvicide treatments of confirmed breeding habitat in the area of the positive sample collection will begin as specified in the Brazos County Health District Phased Response Guidelines. Residents in all areas of Bryan, College Station, and the Brazos Valley area should empty and eliminate any standing water in containers on their property and ensure that lawn irrigation and onsite sewage systems are functioning properly.