Elmore County reports first human case of West Nile Virus infection this summer

Idaho’s first 2016 human case of West Nile virus (WNV) infection was confirmed in an Elmore County woman in southern Idaho. The woman, in her 30s, is recovering at home from West Nile fever.

Besides the Elmore County human infection, eight other Idaho counties have detected WNV in mosquitoes since June 28th. An infection of a horse from Payette County also was reported this week.

“West Nile activity has ramped up significantly during the last few weeks across southern Idaho, so people are strongly encouraged to fight the bite of mosquitoes to protect themselves and their families,” says Dr. Leslie Tengelsen, state public health veterinarian. “This is a good warning for all of us to take protective measures, including wearing insect repellent and reducing mosquito habitat around our homes.” Continue reading “Elmore County reports first human case of West Nile Virus infection this summer”

West Nile virus discovered in Southwest Idaho

Mosquitoes infected with West Nile virus (WNV) have been detected this week in Canyon and Payette counties, prompting public health officials to remind people to take precautions to fight the bite. The positive mosquitoes are the first detected in the state this year.

“West Nile Virus can cause serious illness so it is very important that people take precautions to avoid bites and mosquito-proof their homes,” says Dr. Leslie Tengelsen, from the Idaho Division of Public Health. “With our recent warm weather we could see an increase in mosquito activity over the holiday, so we urge people to be careful.” Continue reading “West Nile virus discovered in Southwest Idaho”

Mosquito season has begun! Tips to avoid mosquito bites (and reduce risk of West Nile)

 

mosquitoMosquito abatement districts are surveying and treating for the pesky little blood-suckers earlier than usual because spring has been so mild. So now is a good time to go over the precautions you should take to protect yourself and your family from mosquito bites. Zika virus has been in the news a lot lately, but in Idaho and the rest of the United States, we worry the most about mosquitoes transmitting West Nile virus. This early in the season, we’ve had no reports of West Nile in mosquitoes, humans or horses. Last season in Idaho, 13 people and four horses were infected in six counties. Fortunately, there were no deaths.

Who needs to be thinking about how to avoid West Nile virus?

Everyone who plans to be outside this summer and fall should be thinking about how to avoid mosquito bites. The virus is transmitted by the bite of an infected mosquito. We tend to see the most human illnesses from the virus in July and August, but that could change this year since the weather warmed up so quickly. Continue reading “Mosquito season has begun! Tips to avoid mosquito bites (and reduce risk of West Nile)”

Payette County Woman Hospitalized With West Nile Virus Infection

A Payette County woman in her 40s was hospitalized and is now recovering from a neuroinvasive West Nile virus infection. The woman is the second reported human case in as many days, prompting health officials to warn people to take precautions and avoid mosquito bites. (Read about the first case here.)

A neuroinvasive infection can cause severe illness characterized by encephalitis (inflammation of the brain), or meningitis (inflammation of the linings of the brain or spinal cord).  Symptoms of neuroinvasive infections caused by West Nile virus may include a rapid onset of high fever, headache, body aches, neck stiffness, disorientation and tremors. Most people suffering from neuroinvasive infections require hospitalization. Continue reading “Payette County Woman Hospitalized With West Nile Virus Infection”

Washington County Reports First Human Case of West Nile Virus Infection

Idaho’s first human case of West Nile virus infection this year has been confirmed in a Washington County woman in southwest Idaho. The woman, over the age of 50, is recovering from West Nile fever and did not require hospitalization.

Nine Idaho counties in Idaho have reported West Nile virus-positive mosquitoes during routine surveillance which began in mid-June. In addition, a horse, also from Washington County, tested positive for the virus.

Mosquito abatement districts and public health officials are concerned the unseasonably hot weather in late June followed by instances of heavy rains has resulted in increased mosquito populations and an elevated risk of West Nile infection.  Continue reading “Washington County Reports First Human Case of West Nile Virus Infection”

Idaho West Nile Virus Update

Positive mosquito test results and increasing numbers of specific types of mosquitoes that carry West Nile virus (WNV) suggest the risk of catching WNV is on the rise in Idaho.

As of Wednesday, positive mosquito pools have been found in Ada, Canyon, Gem and Washington counties. On Tuesday, Ada County announced plans to conduct limited aerial spraying of pesticide to reduce ever-increasing populations of Culex mosquitoes, the species that transmits West Nile virus to people and animals.  Spraying is expected to occur Thursday or Friday night this week, weather permitting. Continue reading “Idaho West Nile Virus Update”

West Nile virus detected in mosquitoes from Canyon County

Mosquito pool testing for West Nile virus (WNV) has detected additional signs of the virus in Idaho.  The Canyon County Mosquito Abatement District reports that mosquitoes collected between Parma and Notus tested positive for WNV over the weekend. Additionally, three traps from several locations in Gem County also show evidence of the virus. Since the first positive test of mosquito pools announced last Thursday, four additional pools have tested positive in less than a week.   Continue reading “West Nile virus detected in mosquitoes from Canyon County”

West Nile virus discovered in western Idaho

Mosquitoes infected with West Nile virus (WNV) have been detected in Gem County, prompting public health officials to remind people to take precautions to fight the bite. The positive mosquitoes, which are the first detected in the state this year, were collected by the Gem County Mosquito Abatement District in a trap from the greater Emmett area.

“Disease-carrying mosquitoes will be around now until a killing frost so it is critical that you protect yourself and family members from their bite,” says Dr. Leslie Tengelsen, from the Idaho Division of Public Health.  Continue reading “West Nile virus discovered in western Idaho”