The Wisconsin Division of Public Health will continue surveillance for West Nile virus until the end of the mosquito season.
For additional information about adult mosquitoes and West Nile Virus, residents go to westnile.state.pa.us, or contact the Bucks County Department of Health at 215-345-3318.
Joe Lynch, program manager for vector control and nuisances for the county board of health, said he couldn't release more details on the affected individual.
"Everything does clear up, but it's not a fun illness to have". Spraying is only triggered if additional human cases are confirmed within the same general vicinity as this would give some confidence that the unrelated individuals were infected by mosquitoes in the same area.
West Nile virus is spread to humans through the bite of an infected mosquito. People should minimize the time they spend outdoors at dusk and dawn, district officials said, and protect skin and indoor areas from mosquitoes.
Less than 1 percent of people infected with WNV become seriously ill with symptoms that include a high fever, muscle weakness, stiff neck, disorientation, tremors, paralysis and coma.
It is not uncommon for this part of southern Ontario to see a low number of human cases of the disease per year.