THE VANDERBURGH COUNTY HEALTH DEPARTMENT IS SPRAYING AGAIN TONIGHT, CONTINUING THE ONGOING BATTLE AGAINST MOSQUITOS CARRYING THE WEST NILE VIRUS. SPRAYING MOSQUITO REPELLENT IS A SUMMER TRADITION, AND ITS BECOME EVEN MORE SO SINCE WEST NILE REARED ITS UGLY HEAD IN THE U-S IN 1999 BUT ITS NOW OCTOBER, AND THESE BITTING LITTLE PESTS ARE USUALLY GONE BY NOW Justin Manning: "Last year I checked and the last night we sprayed for adult mosquitoes was September 6th, so were a month behind. " MANNING SAYS ITS FAIRLY UNUSUAL THAT HEALTH OFFICIALS HAVE TO BE THIS VIGILANT AGAINST MOSQUITOES THIS TIME OF YEAR, BUT THE EFFORT IS WEATHER DRIVEN NOT CALENDER DRIVEN, AND THIS YEARS WEATHER HAS BEEN A MOSQUITOS DREAM. Manning: "Its been very prime for mosquitos activity, specifically the types of mosquitos that carry West Nile, they prefer hot dry weather. " AND ITS THE THREAT OF WEST NILE THAT HAS OFFICIALS STILL SPRAYING. SOME MOSQUITOES IN VANDERBURGH COUNTY ARE TESTING POSITIVE FOR THE VIRUS, AND THERE HAVE BEEN TWO CONFIRMED HUMAN CASES THIS YEAR. BESIDES WARM TEMPERATURE, ANOTHER FACTOR FOR THE BUGS PRESENCE IS LACK OF RAIN. THEY TEND TO BREED IN STAGNANT POOLS OF WATER, WHEN RAIN ISNT FLUSHING THEM OUT. WHILE HEALTH OFFICIALS ARE SPRAYING, THERE ARE WAYS YOU CAN STOP THE SPREAD OF THEM STAYING NEAR YOUR HOME, SUCH AS KEEPING YOUR YARD CLEAN AND MANICURED. Kevin Pass "Youll have foliage, the mosquitoes are lighting on there waiting for dusk and then they take off flay from that to the closest blood meal and if thats in your backyard, its you, and theyre coming from your backyard." AT LEAST UNTIL JACK FROST COMES TO TOWN. KELLI CARLISLE, FOX SEVEN NEWS. ANCHOR TAG: KEEP IN MIND, JUST BECAUSE IT GETS COLD, DOESNT MEAN YOU ARE FREE FROM WEST NILE. HEALTH OFFICIALS SAY IF YOURE BITTEN BY AN INFECTED MOSQUITO TOWARDS THE END OF THE SEASON, IT MAY BE TWO WEEKS INTO COOLER TEMPERATURES THAT YOUR SYMPTOMS SHOW. CHECK WITH A DOCTOR IF YOU EXPERIENCE HEAD-ACHES, FEVER, A STIFF NECK, OR THINK YOUVE BEEN INFECTED.