Nicholson Catholic College (Secondary School) will be closed Friday April 11.
Algonquin Lakeshore Catholic District School Board Director of Education David DeSantis says there has been exposure to measles at the school.
Both the school on Church Street and the ALCDSB site at Sir James Whitney will have their doors shuttered.
DeSantis says the closure will allow families and staff time to get their vaccination records up to date.
The school board will provide an update on Sunday evening about a possible reopening for Monday.
