Mask Interventions in K12 Schools Can Also Reduce Community Transmission in Fall 2021

Area of Science:

• Epidemiology
• Public Health Policy

Background:

• The emergence of the COVID-19 Delta variant heightened concerns regarding K12 school policies and their effect on disease transmission.
• Existing studies have limitations, either focusing solely on student infections or community spread without considering school environments under Delta variant conditions.

Approach:

• This study utilized projections to assess the community-level impact of K12 school masking policies.
• The analysis considered factors like mask quality, fit, and hybrid schooling models.

Key Points:

• Implementing masking policies in schools can decrease infections by 23-36% in fully open settings and an additional 11-13% in hybrid models.
• Masking and hybrid schooling strategies can reduce peak hospitalization needs by up to 71%.
• These policies contribute to minimizing additional deaths following school reopenings.

Conclusions:

• Consistent, high-quality masking, coupled with social distancing, represents the most effective strategy for protecting both children and the general population against COVID-19.
• School masking policies are vital for informed decision-making and healthcare system planning during the pandemic.