DULUTH – A resident of this city, that is a gateway to the canoe-country wilderness, is sick with a rare case of West Nile virus in Minnesota.
Heidi Rantala, 50, was in the emergency room at St. Luke’s Medical Center on Sunday, Sept. 7. She is now home and recovering from the virus. She was infected with West Nile while on a canoe trip to the Boundary Waters Canoe Area Wilderness in mid-August, she told Paddle and Portage during a recent interview. Rantala continues to experience body aches, headaches, fatigue, among other symptoms.
Heidi was with a group of five friends on a trip to the BWCA Wilderness near the Lake County and Cook County line when she believes she contracted the virus. The group entered at the Kawishiwi Lake entry point.
Rantala’s case is one of only 21 cases of West Nile reported statewide this year, according to the Minnesota Department of Health (MDH).
Of the 21 cases, two of the affected people have died, MDH reports.
West Nile virus is transmitted to people through the bite of an infected mosquito. Most people who are bitten by infected mosquitoes will experience either no symptoms or a mild flu-like illness. The virus is not contagious from person to person. Less than 1 percent of people who are infected develop encephalitis or meningitis (inflammation of the brain or surrounding tissues). Symptoms usually show up within one to two weeks. There is no treatment for the illness other than supportive care, according to MDH.
The state health agency reports that during the past 22 years of tracking data, there’s never been a case of West Nile reported by a Cook County resident, which includes Grand Marais and the Gunflint Trail. There have been fewer than 10 cases reported in both Lake and St. Louis counties during that time, which include Two Harbors and Duluth, respectively. Ely is also in St. Louis County.
Case numbers of West Nile can vary significantly from year to year in Minnesota due to factors like heat and rainfall, but the recent increase in cases of the virus has health officials encouraging people to take precautions now. With a relatively warm forecast this week for the BWCA and temperatures not expected to drop below freezing, it’s likely the mosquito season is not done yet in the canoe-country wilderness.
Elderly people and those with weakened immune systems are at greatest risk for severe disease, followed by people who work outside or participate in outdoor activities like paddling in the BWCA, MDH reports.
In Minnesota, cases of West Nile virus have been found throughout the state. The highest risk areas for West Nile virus include the agricultural regions of western and central Minnesota. Other states in the western and central U.S., including Iowa, North Dakota, and South Dakota, are also seeing increased activity.
“This is a high-risk time of year for West Nile virus transmission,” said Elizabeth Schiffman, supervisor of MDH’s Vectorborne Diseases Unit. “It’s important to prevent mosquito bites when people are enjoying time outside while the weather is still nice.”
