New Mexico confirms first 2025 West Nile virus case

SANTA FE – The New Mexico Department of Health has confirmed a West Nile virus infection in a Valencia County resident who was hospitalized and has been discharged.

West Nile virus infection has also been confirmed in three horses in New Mexico this year, two in Lea County and one in Eddy County. The virus is transmitted by mosquitoes and residents are encouraged to take steps to reduce their risk of infection.

Protection measures

• Use an approved insect repellent every time you go outside and follow the instructions on the label. EPA-approved repellents are those that contain DEET, picaridin, IR3535 or oil of lemon eucalyptus/para-menthane-diol.  
• Wear long sleeves and pants at dawn and dusk when mosquitoes are most active.  
• Check for water-holding containers where mosquitoes lay their eggs, such as old tires, empty cans, and other unneeded outdoor items that can hold water. Drain the water in birdbaths, wading pools, and saucers under potted plants weekly. 
• Make sure rain barrels are tightly screened.  
• Keep windows and doors closed if not screened. If you leave your house doors or windows open, make sure they have screens that fit tightly and have no holes.

For more information about preventing mosquito bites, visit the CDC’s website.

About West Nile virus illness
West Nile fever is an infection caused by the virus. Most people experience few symptoms, which can include headache, fever, muscle and joint aches, nausea and fatigue. In less than 1% of people a more serious infection can occur with symptoms including neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness and paralysis.

There are no medications to treat West Nile fever and no vaccines to prevent infections in humans. People age 50 years and older and those with other health issues are at highest risk of becoming seriously ill or dying when they become infected with the virus. 
Over the last five years, New Mexico has averaged 32 cases per year of West Nile virus.

Media Contact

We would be happy to provide additional information about this press release. Simply contact David Barre at (505) 699-9237 (Office) with your questions.

Versión en Español

En un esfuerzo para hacer que nuestros comunicados de prensa sean más accesibles, también tenemos disponibles una versión en español. Por favor presione el enlace de abajo para acceder a la traducción.

Nuevo México confirma el primer caso de virus del Nilo Occidental del 2025