what is the current attack rate of the disease?

Question 2: What is the current attack rate of the disease? (show your work)

UPDATE: Wednesday, August 22nd 5pm

Since this afternoon, 75 additional students have reported ill to the clinic, an additional seven went to the local hospital due to advanced symptoms. In addition, you have learned that at least one parent, who was dropping their child off at the college, has reported to their local hospital with similar symptoms.

You call the local hospital to get information regarding the seven students who went there and learn that all seven were admitted and are being treated with fluids. The hospital tells you it has collected stool samples and sent them to the lab for analysis.