THINKS THE THREAT IS CLOSER TO HOME THAN PEOPLE REALIZE. THIS MORNING, HEADING INTO THE LONG HOLIDAY WEEKEND, THERE ARE NEW CONCERNS BUZZING FOR THOSE EAGER TO SOAK UP THE FINAL DAYS OF SUMMER OUTSIDE. >> WE HAVE HAD A LOT OF EXTRA RAINS AND A LOT OF MOSQUITOS AROUND. >> RARE BUT POTENTIALLY DEADLY MOSQUITO BORN ILLNESSES PLAGUE PARTS OF THE COUNTRY. >> IT IS CRAZY. YOU ARE SITTING ON MY BACK PORCH FOR TEN MINUTES AND I GO BACK INSIDE AND I HAVE LIKE TEN BITES. >> Reporter: WISCONSIN OFFICIALS LINKING TWO DEATHS TO WEST NILE, WITH NEARLY 300 CASES REPORTED IN 33 STATES. AND NOW THERE IS A SIXTH CASE OF EASTERN EQUINE EVEN SIF LIE TIS OR EEE, THE VIRUS FOUND IN FIVE STATES THAT'S KILLED ONE MAN. >> I THINK IT WILL BE A SIGNIFICANT CONCERN IN THE FUTURE. >> Reporter: CITIES TAKING ACTION, SPRAYING NEIGHBORHOODS TO HELP PROTECT RESIDENTS. FOR THOSE HEADING TO A LAKE FOR LABOR DAY, BE ON HIGH ALERT. MOSQUITOS LOOK FOR STILL, FRESH WATER. BE SURE TO USE A DEET-BASED MOSQUITO SPRAY. HIS 18-YEAR-OLD SON HAS A LONG ROAD TO RECOVERY. HE'S ON A VENTILATOR PARALYZED FROM THE NECK DOWN AFTER CONTRACTING WEST NILE VIRUS FROM A MOSQUITO BITE HIS DAD BELIEVES HE GOT WHILE PLAYING WITH THEIR DOG IN THE BACKYARD. >> IT IS HARD TO FATHOM HOW SUCH A SMALL CREATURE CAN TAKE A PERFECTLY 100% HEALTHY HUMAN BEING AND JUST CAUSING HAVOC ON HIS BODY THAT FAST. IT ONLY TAKES ONE MOSQUITO TO GET YOU. >> Reporter: HIS FAMILY HAS BEEN TOLD A FULL RECOVERY IS POSSIBLE, BUT IT COULD TAKE A YEAR OR MORE. WITH THAT IN MIND, SOME TIPS FROM EXPERTS. THEY SAY YOU CAN USE BUG SPRAY ON KIDS, BUT MAKE SURE YOU APPLY IT TO YOUR HANDS FIRST BEFORE APPLYING IT TO THEM. THEY SAY YOU CAN PROTECT YOUR PETS BUT