Huron Perth Public Health added only 3 new cases on Tuesday.
Perth East added 2 and North Perth added 1 case.
The Avon Maitland District School Board is reporting 2 more cases, and 2 more class closures.
The new cases are at Upper Thames Elementary School and Bedford Public School.
Elsewhere Lambton Public Health added 3 new cases while Middlesex London added 7.
