Here is an updated version of my infographic providing data that shows masking young children in school is impractical and not backed up by research. All 52 citations are in linked this thread.
Feel free to point out if I’ve cited something incorrectly, a link no longer works, or you think I’ve missed something. I tried to use direct research/evidence whenever possible but utilized some anecdotal/tertiary evidence given the general lack of research on masking children.
1 https://www.npr.org/2020/06/24/882316641/what-parents-can-learn-from-child-care-centers-that-stayed-open-during-lockdowns
2 https://adc.bmj.com/content/105/7/618.info
3 https://www.government.nl/topics/coronavirus-covid-19/questions-about-coronavirus-and-the-education-sector
4 https://academic.oup.com/cid/article/doi/10.1093/cid/ciaa794/5862649
5 https://pediatrics.aappublications.org/content/146/2/e2020004879
6 https://pediatrics.aappublications.org/content/early/2020/07/08/peds.2020-004879
7 https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2020.25.21.2000903
8 https://www.thetimes.co.uk/article/no-known-case-of-teacher-catching-coronavirus-from-pupils-says-scientist-3zk5g2x6z
9 https://www.sickkids.ca/PDFs/About-SickKids/81407-COVID19-Recommendations-for-School-Reopening-SickKids.pdf
10 https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covidview/index.html
2 https://adc.bmj.com/content/105/7/618.info
3 https://www.government.nl/topics/coronavirus-covid-19/questions-about-coronavirus-and-the-education-sector
4 https://academic.oup.com/cid/article/doi/10.1093/cid/ciaa794/5862649
5 https://pediatrics.aappublications.org/content/146/2/e2020004879
6 https://pediatrics.aappublications.org/content/early/2020/07/08/peds.2020-004879
7 https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2020.25.21.2000903
8 https://www.thetimes.co.uk/article/no-known-case-of-teacher-catching-coronavirus-from-pupils-says-scientist-3zk5g2x6z
9 https://www.sickkids.ca/PDFs/About-SickKids/81407-COVID19-Recommendations-for-School-Reopening-SickKids.pdf
10 https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covidview/index.html
11 https://www.medrxiv.org/content/10.1101/2020.06.24.20138875v1.full.pdf
12 https://www.politico.com/news/2020/06/10/european-school-reopeningsreduce-virus-concerns-for-most-312595
13 https://pubmed.ncbi.nlm.nih.gov/32513410/
14 https://www.bloomberg.com/news/articles/2020-06-23/school-children-don-t-spread-coronavirus-french-study-shows
15 https://thedispatch.com/p/reopening-schools-isnt-risk-free
16 https://pediatrics.aappublications.org/content/pediatrics/early/2020/05/22/peds.2020-004879.full.pdf
17 https://news.yahoo.com/german-study-finds-no-evidence-164704005.html
18 https://www.theguardian.com/world/2020/may/18/french-minister-tells-of-risks-of-missing-school-as-more-pupils-return-covid-19
19 https://www.nature.com/articles/s41591-020-0962-9
20 https://www.nejm.org/doi/pdf/10.1056/NEJMoa2006100?articleTools=true
12 https://www.politico.com/news/2020/06/10/european-school-reopeningsreduce-virus-concerns-for-most-312595
13 https://pubmed.ncbi.nlm.nih.gov/32513410/
14 https://www.bloomberg.com/news/articles/2020-06-23/school-children-don-t-spread-coronavirus-french-study-shows
15 https://thedispatch.com/p/reopening-schools-isnt-risk-free
16 https://pediatrics.aappublications.org/content/pediatrics/early/2020/05/22/peds.2020-004879.full.pdf
17 https://news.yahoo.com/german-study-finds-no-evidence-164704005.html
18 https://www.theguardian.com/world/2020/may/18/french-minister-tells-of-risks-of-missing-school-as-more-pupils-return-covid-19
19 https://www.nature.com/articles/s41591-020-0962-9
20 https://www.nejm.org/doi/pdf/10.1056/NEJMoa2006100?articleTools=true
21 https://www.spectator.co.uk/article/face-masks-should-there-be-a-cover-up-
22 https://www.bmj.com/content/369/bmj.m1435/rr-40
23 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5779801/
24 https://medicalxpress.com/news/2020-05-covid-transmission.html
25 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2662657/
26 https://www.nejm.org/doi/full/10.1056/NEJMp2006372
27 https://www.ecdc.europa.eu/sites/default/files/documents/COVID-19-use-face-masks-community.pdf?fbclid=IwAR1_jAdl1oSRx3g2uvZ4Ep6J77FJ0xZiycH0kSUx3P43NAuWartAb9y_XUM
28 https://services.aap.org/en/pages/2019-novel-coronavirus-covid-19-infections/clinical-guidance/covid-19-planning-considerations-return-to-in-person-education-in-schools/
29 https://www.bmj.com/content/369/bmj.m1435/rr-43
30 https://www.cbsnews.com/news/coronavirus-prevention-face-mask-not-helpful-wash-hands/
22 https://www.bmj.com/content/369/bmj.m1435/rr-40
23 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5779801/
24 https://medicalxpress.com/news/2020-05-covid-transmission.html
25 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2662657/
26 https://www.nejm.org/doi/full/10.1056/NEJMp2006372
27 https://www.ecdc.europa.eu/sites/default/files/documents/COVID-19-use-face-masks-community.pdf?fbclid=IwAR1_jAdl1oSRx3g2uvZ4Ep6J77FJ0xZiycH0kSUx3P43NAuWartAb9y_XUM
28 https://services.aap.org/en/pages/2019-novel-coronavirus-covid-19-infections/clinical-guidance/covid-19-planning-considerations-return-to-in-person-education-in-schools/
29 https://www.bmj.com/content/369/bmj.m1435/rr-43
30 https://www.cbsnews.com/news/coronavirus-prevention-face-mask-not-helpful-wash-hands/
31 https://www.who.int/emergencies/diseases/novel-coronavirus-2019/question-and-answers-hub/q-a-detail/q-a-on-covid-19-and-masks
32 https://bmjopen.bmj.com/content/5/4/e006577
33 https://wwwnc.cdc.gov/eid/article/26/5/19-0994_article#r39
34 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/
35 https://www.independent.co.uk/news/health/coronavirus-news-face-masks-increase-risk-infection-doctor-jenny-harries-a9396811.html
36 https://pubmed.ncbi.nlm.nih.gov/20592763/
37 https://www.medpagetoday.com/infectiousdisease/infectioncontrol/16278
38 https://www.medrxiv.org/content/10.1101/2020.05.01.20088260v1.full.pdf
39 https://www.cidrap.umn.edu/news-perspective/2020/04/commentary-masks-all-covid-19-not-based-sound-data
40 https://www.rcreader.com/commentary/masks-dont-work-covid-a-review-of-science-relevant-to-covide-19-social-policy
32 https://bmjopen.bmj.com/content/5/4/e006577
33 https://wwwnc.cdc.gov/eid/article/26/5/19-0994_article#r39
34 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/
35 https://www.independent.co.uk/news/health/coronavirus-news-face-masks-increase-risk-infection-doctor-jenny-harries-a9396811.html
36 https://pubmed.ncbi.nlm.nih.gov/20592763/
37 https://www.medpagetoday.com/infectiousdisease/infectioncontrol/16278
38 https://www.medrxiv.org/content/10.1101/2020.05.01.20088260v1.full.pdf
39 https://www.cidrap.umn.edu/news-perspective/2020/04/commentary-masks-all-covid-19-not-based-sound-data
40 https://www.rcreader.com/commentary/masks-dont-work-covid-a-review-of-science-relevant-to-covide-19-social-policy
41 https://onlinelibrary.wiley.com/doi/full/10.1111/j.1750-2659.2011.00307.x
42 https://whtc.com/news/articles/2020/jul/29/dutch-government-will-not-advise-public-to-wear-masks-minister/1044325/
43 https://www.cebm.net/covid-19/masking-lack-of-evidence-with-politics/
44 https://academic.oup.com/cid/article/65/11/1934/4068747?fbclid=IwAR3_M9KWJ4Cl8yfEX18_lsI8w1xrm-U3ZEcKde6WVYdYa_OyHkZaDHQMKDo
45 http://www.koreascience.or.kr/article/JAKO201521839156288.page
46 https://ocde.us/Board/Documents/2020%20Agendas/Special%20Meeting%20Agenda%2007.13.2020.pdf
47 https://ies.ed.gov/ncee/edlabs/regions/midatlantic/pdf/ReopeningPASchools.pdf
48 https://www.health.harvard.edu/blog/helping-people-with-autism-spectrum-disorder-manage-masks-and-covid-19-tests-2020061020089
49 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2781887/
50 http://aapca2.org/wp-content/uploads/2020/06/AAP-CA2-press-release-on-schools-re-opening-6-2-20-Rev.pdf
42 https://whtc.com/news/articles/2020/jul/29/dutch-government-will-not-advise-public-to-wear-masks-minister/1044325/
43 https://www.cebm.net/covid-19/masking-lack-of-evidence-with-politics/
44 https://academic.oup.com/cid/article/65/11/1934/4068747?fbclid=IwAR3_M9KWJ4Cl8yfEX18_lsI8w1xrm-U3ZEcKde6WVYdYa_OyHkZaDHQMKDo
45 http://www.koreascience.or.kr/article/JAKO201521839156288.page
46 https://ocde.us/Board/Documents/2020%20Agendas/Special%20Meeting%20Agenda%2007.13.2020.pdf
47 https://ies.ed.gov/ncee/edlabs/regions/midatlantic/pdf/ReopeningPASchools.pdf
48 https://www.health.harvard.edu/blog/helping-people-with-autism-spectrum-disorder-manage-masks-and-covid-19-tests-2020061020089
49 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2781887/
50 http://aapca2.org/wp-content/uploads/2020/06/AAP-CA2-press-release-on-schools-re-opening-6-2-20-Rev.pdf