Saint Therese School in Lansing and Our Savior Lutheran School canceled classes Thursday and Friday after having a large number of students out sick throughout the week.
Lansing Christian School will close its doors Friday.
The principals say there are various different illnesses going around. Some kids have flu-like symptoms such as coughing and a fever. Other students have stomach virus symptoms like nausea and vomiting.
Health officials say the illnesses are most likely caused by a number of different viruses, including the flu.