Idaho’s first two human cases of West Nile virus (WNV) infection for 2019 have been confirmed in residents of Washington County. A resident over the age of 30 was diagnosed with West Nile virus neuroinvasive disease. Another resident over the age of 60 was diagnosed with West Nile virus fever.
So far this year, WNV activity has been detected in 10 counties.
“The detection of West Nile virus-positive mosquitoes has increased significantly during the last few weeks and we strongly encourage Idahoans to fight the bite of mosquitoes to protect themselves and their families,” says Dr. Leslie Tengelsen, state public health veterinarian. “Confirmation of human infection makes it increasingly important for all of us to take protective measures. This includes wearing insect repellent and protective clothing in addition to reducing standing water around our gardens and homes where mosquitoes can lay their eggs.” Continue reading
Mosquitoes infected with West Nile virus (WNV) were detected in Canyon County on June 14, 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 Canyon County Mosquito Abatement District. The positive lab results were confirmed Tuesday.
Last year, one death was reported because of WNV complications, and 11 counties across the state reported finding mosquito pools that tested positive for West Nile virus. Sixteen people and five horses were infected. This first detection of 2019 occurred in western Idaho, an area where positive mosquitoes have been found almost every year since West Nile virus was first detected in Idaho in 2004.
West Nile virus is contracted from the bite of an infected mosquito; it is not spread from person-to-person through casual contact. Symptoms often include fever, headache, body aches, nausea, vomiting, and sometimes swollen lymph glands or a skin rash. In some cases, the virus can cause severe illness, especially in people over the age of 50, and may require hospitalization. On rare occasion, it can lead to death. Continue reading
Warm summer days means more time outdoors as we take advantage of the weather and longer daylight hours. Unfortunately, the nicer weather also brings out ticks and mosquitoes. A bite from either can cause diseases that might seriously impact your health. It’s important to do everything you can to avoid getting bitten.
Tick- and mosquito-borne diseases can vary by region in the United States. Besides West Nile virus, are there other insect-borne diseases we should be informed about in Idaho?
That is a great question – before you head into the outdoors, you should learn more about the diseases associated with local ticks and mosquitoes. In Idaho, public health officials are most concerned about West Nile virus, Rocky Mountain Spotted Fever, tick-borne relapsing fever, and tularemia.
What about Lyme disease?
We often hear about Lyme disease in the national media, but cases in Idaho are rare and mostly occur in people who traveled to other areas of the country where infected ticks have been found. The tick that carries Lyme disease is not known to live in Idaho, but since cases are tracked by where a person lives rather than where they were infected, Idaho will have some cases over the years, usually in people returning from trips in the eastern or midwestern U.S. The Centers for Disease Control and Prevention is an excellent resource if you want to learn more about the risks of insect bites in a different state or country. Continue reading
The first positive human case of mosquito-borne West Nile virus (WNV) in Idaho this season has been confirmed in Canyon County by Southwest District Health officials in a male in his 50s who resides in Canyon County but may have been exposed in Adams County. Both counties have previously reported WNV-positive pools of mosquitoes this season.
The individual reported mosquito bites before the onset of his illness in mid-July, according to public health officials. His symptoms included high fever, severe headaches, rash, body aches, vomiting and diarrhea. Continue reading
Seems like it’s just starting to warm up and feel like spring, so is it mosquito season already?
Yes, local mosquito abatement districts are surveying and treating for mosquitoes already this year. We’ve had a lot of rain showers this spring and that means standing water is abundant, serving as prime egg laying areas for mosquitoes. Now is a good time to go over the precautions you should take to protect yourself and your family from mosquito bites and the potentially dangerous viruses they can bring. Continue reading
As the weather warms up, more of us are getting outdoors with our families and pets for fun and exercise. Unfortunately, the nicer weather also brings out ticks and mosquitoes. A bite from one of these not-so-delightful creatures can cause disease and have a serious impact on your health. It’s important to do everything you can to avoid getting bitten. Continue reading
Idaho’s first human case of West Nile virus (WNV) infection for 2017 has been confirmed in a Kootenai County resident. The resident, over the age of 50, is recovering from West Nile neuroinvasive disease.
This is the first human case of locally-acquired WNV in northern Idaho since the virus was first detected in Idaho in 2003.
A total of 11 Idaho counties have reported WNV activity in mosquitoes since the end of May. This case is the first person to be reported to be infected this season and the first indication of WNV activity in Kootenai County this season, bringing the total positive number of counties so far this year to 12.
“West Nile activity has ramped up significantly during the last few weeks, 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, such as standing water, around our gardens and homes.” Continue reading