A Calgary man has been confirmed as having Alberta's first case of West Nile virus this year.

The virus is carried by mosquitoes that usually reach their peak biting season in July and August but the inconsistent temperatures this summer have helped keep the infected insects in check.

The man travelled to Saskatchewan in the first week of August but health officials believe he contracted the virus in Alberta.

Dr. André Corriveau, chief medical officer of health, used the opportunity to remind Albertans to wear mosquito repellent and long-sleeved tops as well as pants and socks when outside as preventive measures against contracting West Nile.

Symptoms of West Nile non-neurological syndrome include fever, chills, nausea, vomiting, fatigue, a possible skin rash or swollen glands and headache.

Its serious symptoms include neck stiffness, a worsening headache, disorientation, tremors or convulsions, muscle weakness, difficulty moving, and paralysis or coma.

During 2008, one human case of West Nile virus was reported in the province.