First West Nile case reported in ND
BISMARCK – The North Dakota Department of Health and Human Services (HHS) has confirmed the first human case of West Nile virus this season. The individual, a Cass County resident, was hospitalized. So far in 2026, five counties have reported mosquito pools positive for West Nile virus: Cass, Grand Forks, Richland, Ward and Williams. Additionally, one animal in Sioux County and a bird in Richland County have tested positive for the virus. There is risk of contracting this disease anytime mosquitoes are active, so it is important to protect yourself and your family from mosquito ...