The last human case reported in Cascade County was in 2015, according to a press release from the Cascade City-County Health Department.
More than 100 people across the country have tested positive for the illness this year.
Health experts say that they expect the incidence rate to only keep increasing as the scorching heat drags on, and are encouraging the public to protect themselves.
Tuesday's announcement that West Nile Virus has been discovered among mosquitoes in Belmont County has created some questions: what does this mean for the average person?
Cases generally tend to spike during the summer and fall months, between June and September, when activity is the most common.
Testing for infected mosquitoes will continue in Clark County.
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"Early symptoms can include fever, muscle weakness, stiff neck, confusion, severe headache, sudden sensitivity to light, tremors, numbness, or vision loss".
"It's a good reminder this is the time of year that we have to be concerned about West Nile regardless of where the traps are and really take precautions for ourselves".
Public health officials have detected West Nile Virus in a pool of mosquitoes in Stirling-Rawdon.
West Nile virus is a viral infection found in birds and carried by mosquitoes which feed upon infected birds.
Health departments have also encouraged residents to remove items from the outside of their home that contain water - such as buckets or pet dishes - because it can be a breeding ground for mosquitoes. But the elderly and those with compromised immune systems can become seriously ill and could die. It's also recommending that residents reduce their time spent outside during dusk and dawn, wear long sleeves and long trousers.