Woodland School District officials sent a letter home to parents Thursday warning of a measles case.
Cowlitz County health officials confirmed a case of measles in a student at Woodland Primary School. School and health officials reviewed immunization history for every student at the school and found 25 students must be excluded from school because they are not up to date on their measles vaccinations.
Measles is highly contagious. School and health officials are urging anyone who has not had a second dose of the measles, mumps and rubella (MMR) vaccine to get immunized.
The school is offering a free immunization clinic Monday for students who have only had one shot.