Canadian man hospitalized with H1N1v

A Canadian man was recently hospitalized with complications arising from infection with a variant of the swine flu virus that caused the 2009 pandemic.

Canadian public health officials said the case of H1N1v was located in southwestern Ontario. The adult male is currently being treated an undisclosed hospital, according to

Arlene King, Ontario's chief medical officer of health, said that the patient fell ill after close contact with pigs. She added that swine flu rarely spreads from animals to humans or between humans and said that the patient is being closely monitored.

"It's likely an isolated occurrence," she said, CIDRAP News reports.

King said H1N1 cases are not entirely unexpected and that there have been a number of human infections with variant influenza viruses in the United States. The man worked with pigs in the United States and Canada, but it is unclear where he contracted the virus, according to CIDRAP News.

The U.S. Centers for Disease Control and Prevention recently reported an H1N1v case in Missouri in which the virus was identified as having the matrix gene from the 2009 pandemic strain. The Missouri case was only the second identification of this particular variant. There have been 12 H1N1v cases identified in the United States since 2005 that have not contained the M gene.

King said officials have yet to determine whether the Ontario case involved an H1N1v with the 2009 M gene.