Two cases of West Nile have been confirmed in southern Alberta.
One involved a woman and the other person infected was a man. Both are between the ages of 40 and 55.
Alberta Health Services (AHS) says both cases were non-neurological and happened in mid-August.
Health officials say about 20 per cent of cases are non-neurological, and only about 1 in 150 is neurological.
Symptoms of non-neurological syndrome include fever, chills, nausea, vomiting, fatigue, skin rash, swollen glands and headache.
While severe neurological syndrome is rare, it can lead to death.
West Nile is transferred through mosquitoes that carry the virus, but officials say most individuals who are exposed show no symptoms.
"This is a reminder to all Albertans, particularly seniors, to take precautions when enjoying the outdoors: wear insect repellent with DEET; wear long-sleeved, light-coloured shirts and pants; wear a hat; and consider staying indoors at dawn and dusk, when mosquitoes are most active," said Dr. James Talbot, Alberta's chief medical officer of health.
In 2012, the Public Health Agency of Canada reported 447 clinical cases of West Nile virus in Canada, including nine in Alberta.
Of the nine cases reported in Alberta, there was one death.