Classroom Experiment Shows the Importance of Hand-Washing — Just in Time for Flu Season
https://www.parents.com/news/classr...fbMxysxi04O5I4fegw3Ja8QMMDs-PyeUqLJ8txquJWf9E
https://www.parents.com/news/classr...fbMxysxi04O5I4fegw3Ja8QMMDs-PyeUqLJ8txquJWf9E