Q: Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.
Paragraph: "I hope that this is the last of it," Rogers City Superintendent Nick Hein told The Alpena News. Bad weather hasn't scratched classes this year in Rogers City, which is along Lake Huron, 60 miles southeast of the Mackinac Bridge. But illness is another story. The district has roughly 510 students. A quarter of them were out Friday. "My school nurse has confirmed the majority of it was the flu," Hein said of students who were absent. District Health Department No. 4 said flu has been widespread for five to six weeks in the northeastern Lower Peninsula. Claim: Snow day? No, it's illness _ again _ in school district.
A:
Illness not snow canceled classes Monday for a fourth time at a school district in Michigan's northern Lower Peninsula.