"Public Health maintains and monitors 33 mosquito traps that are set up across the cities of Mississauga and Brampton and the Town of Caledon", Callanan said in a news release.
The first confirmed human case of West Nile Virus in Butte County has been announced Thursday morning by the Butte County Public Health Department. Eight out of 10 people will never experience any symptoms.
The DEP and its county partners across the state have been conducting routine, localized spraying to control infected adult populations of mosquitoes.
"With record levels of West Nile virus activity in mosquitoes already found, we are at increased risk of disease from a bite of a mosquito", said DEP Secretary Patrick McDonnell.
Between 2013 and 2015, there were no reported human cases with only single cases reported in 2016 and 2017.
Less than 1 percent of infected people develop the sometimes fatal neuro-invasive illness.
West Nile Virus affects the nervous system and some mild symptoms include fever, headaches and muscle aches that can last days to weeks.
"Luckily, the summer to this point hasn't been extremely wet, which has limited prime breeding conditions for mosquitoes", Callanan said.
Use insect repellents when you go outdoors. Wear proper clothing and repellent if outside during these times. Always use according to label instructions. Long sleeves and trousers if possible.
The best way to prevent infection from any mosquito-borne illness, including West Nile Virus, is to use mosquito repellent that contains DEET and by covering up during outdoor activities - wearing shoes, socks, long trousers and a long-sleeved shirt.