First case of human West Nile Virus in 2025 reported in Harrison County

HARRISON COUNTY, Miss. (WXXV)- The Mississippi State Department of Health has confirmed the first human case of West Nile Virus in Harrison County for 2025.

Officials say this case serves as an important reminder that mosquitoes in our area can carry West Nile Virus, and residents should take precautions to protect themselves.

In response to the positive test, Harrison County will implement additional mosquito control efforts. In addition to their routine efforts, the county will perform adulticiding operations between dusk and dawn starting Wednesday for three consecutive days, weather permitting.

These operations are designed to suppress mosquito populations and help reduce the spread and risk of the virus.

To help reduce the risk of West Nile virus, the Harrison County Mosquito Control Division recommends following the “7 D’s of Mosquito Prevention”:

• DRAIN standing water around your home where mosquitoes breed.
• Stay indoors at DAWN and DUSK when mosquitoes are most active.
• DRESS in long sleeves and pants to limit exposed skin.
• DEFEND yourself by using mosquito repellents containing DEET, Picaridin, or Oil of Lemon Eucalyptus.
• Keep DOORS and windows screened and in good condition.
• Call the DISTRICT for mosquito problems in your area.

Harrison County Mosquito Control has placed mosquito traps in Harrison County to collect and test mosquitoes for the virus.

In addition, the area is being treated extensively to reduce mosquito populations and lower the risk of further spread.

“This case is a reminder that West Nile virus remains a health concern in Harrison County,” said Gene Fayard, Director of Mosquito Control. “We are aggressively monitoring and treating affected areas, but community participation is essential. Residents can help by eliminating standing water and protecting themselves outdoors.”