The Memorial School in the Mendon Upton School District has been hit with a very high number of flu like illness. Superintendent Doctor Joe Murscheck said 109 students out of 462 were out ill, a little more than 20 percent of the population. 11 staff members were out as well. Murscheck said this is a definite cause for concern. He said a special informational flyer was sent to parents to serve as a guide to flu symptoms.