Flu season is just beginning to pick up in Michigan, but the predominate strain of flu identified at labs in Michigan has been easy to spot.

The Michigan Department of Health and Human Services says there have been 111 laboratory-confirmed cases of influenza in Michigan this season. 82 percent, a total of 91 of those cases, have been identified as the H1N1 strain. The strain A/H3 has 15 confirmed cases and B has five cases.

Last season, there were 879 laboratory confirmed cases of the flu in Michigan. Only 9 percent (80) of those cases were H1N1. 579 were A/H3 and 220 were B.

The CDC says the predominance of H1N1 has been similar across most of the country, with the southeastern United States being the one exception. Last year’s flu season was the deadliest since the 2009 H1N1 pandemic with more than 79,000 deaths from the flu worldwide.

Flu season began to pick up in Michigan in early December. It has grown each week since. Last year, the flu peaked in Michigan in late January. In 2017 and 2016, the peak came around the end of February. In 2015, the peak of flu season was at the beginning of January in Michigan.

When the flu peaks and how severe the season becomes is hard to predict, but there is good news because the current flu vaccine has been working very well against this year's viruses.