CALGARY — An adult male in the Calgary area has become Alberta’s first human case of West Nile virus for 2009.
Alberta Health says it’s likely the man picked up the virus in Alberta, although he had travelled in Saskatchewan during the first week of August.
The department says the victim has a type of the disease known as West Nile neurological syndrome.
The more serious symptoms of this version include neck stiffness, a severe headache, disorientation, tremors or convulsions, muscle weakness, difficulty in moving and paralysis or coma.
The spread of the virus to humans depends on the activity of Culex tarsalis mosquitoes, but officials say temperatures this year have not been consistently warm enough to contribute to the problem.
There was one human case of West Nile virus in Alberta last year.