Top 5 western states for West Nile Virus activity

If you think the only threat mosquitoes pose are itchy bites, think again. Mosquitoes can spread multiple diseases, including West Nile Virus. Mosquitoes get this virus from feeding on birds who carry the disease, and when an infected mosquito bites someone, it can pass along the virus.

Residents of the western U.S. should take the proper precautions to avoid West Nile Virus and reach out to your local Wester Exterminator as soon as you see signs of an infestation. Below we rank the states that we service for West Nile Virus activity based on 2023 data from the Centers for Disease Control and Prevention.

Have you seen an increase of mosquitoes around your home or business? Get in touch with Western by calling 888-444-6138 or contacting us online. We understand the threats that mosquitoes pose and will help eliminate them from your premises.

5. Utah

Utah starts off our list with eight total cases of West Nile Virus in 2023. Several bird species that are known to carry West Nile Virus are found in the Beehive State, such as the American robin and Bald Eagle. Melting snow can result in standing water, a condition conducive to mosquito breeding and survival. If you live in areas like Salt Lake City, you’ll want to watch out for mosquito activity on your property and take action at the first sign of an infestation.

4. Oregon

The Beaver state comes in at number four, with 17 cases of West Nile Virus in 2023. Oregon sees most of its mosquito activity near water sources such as the Columbia River, Bonneville Dam, and Willamette Valley. Like Utah, melting snow provides mosquitoes with optimal breeding grounds. Cities like Portland and Roseburg with large populations may experience higher levels of West Nile Virus.

3. Idaho

Idaho comes in at number three on our list, with 36 West Nile Virus reported in 2023. The gem state is home to many bird species susceptible to West Nile Virus, such as the American crow and common raven. Melting snow in parts of Idaho leaves behind stagnant water, providing good conditions for mosquitoes. If you reside in cities like Boise or Twin Falls, stay alert for mosquitoes and try to eliminate any sources of standing water at your home or business.

2. Arizona 

Mosquitoes breed year-round in Arizona, with a total of 82 cases of West Nile Virus in 2023. Popular cities in Arizona, such as Phoenix, can see more mosquito activity than most, making it essential to protect yourself from mosquito-borne diseases. In the Copper State, dry conditions lead to frequent lawn and crop watering. The water from this can create puddles, the perfect place for mosquitoes to breed. And, of course, monsoon season hits Arizona in the summer months, which leads to more standing water and larger quantities of mosquitoes.

1. California

The highest number of West Nile Virus cases can be found in the Golden State of California. In 2023, California reported 409 total cases of West Nile Virus. California has a high population, providing plenty of opportunities for a blood meal. Standing water that pools in low areas after spring rains and any abandoned water containers on your property both give mosquitoes a greater opportunity to breed. Whether you live in Los Angeles, Sacramento, or another California city, it’s key to get ahead of mosquito issues to prevent further problems.

West Nile Virus symptoms

In most cases, people who have West Nile Virus do not actually experience symptoms. Some may deal with a fever and symptoms like headaches, joint pain, and rash. According to the CDC, around one out of 150 people infected with the virus encounter an illness that affects the central nervous system, such as meningitis. People over 60 years old or who have weakened immune systems are at a higher risk of contracting the virus.

If you think you may have West Nile Virus, contact a medical professional as soon as possible.

West Nile Virus prevention

Follow these proactive steps to lower your risk of mosquito bites:

• Fix holes in screens on doors and windows
• Eliminate standing water, such as in flowerpots and rain gutters
• Wear long-sleeved shirts when outdoors during high mosquito activity
• Avoid being outside during dusk and dawn
• Use an EPA-registered mosquito repellent when outdoors

How to get rid of mosquitoes

If you have a mosquito infestation, contact your local Western Exterminator office to eliminate the mosquitoes before they get worse. Our technicians know how to get rid of mosquitoes and can provide an effective treatment solution. Your technician will also give recommendations on how to get rid of standing water at your property. Contact us today to learn more about our mosquito control services and take the necessary precautions to protect your family.

Learn more about West Nile Virus cases: 

https://www.cdc.gov/west-nile-virus/data-maps/historic-data.html