Model Developed by University of Vermont Researchers for Safe School Reopening

Context of School Reopening During COVID-19

The reopening of schools amid the COVID-19 pandemic has generated significant debate and concern. Extended school closures can have enduring effects on children’s health and development. Many working and disadvantaged parents depend on school systems for their children’s education. Given the novel nature of the virus and the absence of long-term research, current guidelines and metrics for school closures have largely been modeled on influenza transmission patterns.

Study Overview and Methodology

To create a reliable prediction model for reopening schools, it is essential to consider children’s transmissibility and susceptibility to COVID-19. A recent study published in BMC Public Health addresses this issue by modeling the impact of SARS-CoV-2 transmission in school environments. The researchers adapted an established impact tracing model from Shanghai, China, to evaluate how open schools influence the spread of COVID-19 within communities.

The study examined various conditions by analyzing daily contact across all age groups to assess the transmission risk in schools and surrounding communities. Contact behavior was monitored during two distinct periods: before and after pandemic lockdowns. The researchers tested multiple school reopening scenarios while operating under the assumption that children under 10 years old are less susceptible to SARS-CoV-2 and infrequently transmit the virus to adults or peers.

Findings on School Reopening and Transmission Risks

The research indicates that schools can reopen during the COVID-19 pandemic if strict contact guidelines are implemented. A complete lockdown proves to be the most effective social distancing measure in reducing COVID-19 transmissibility, as it significantly limits human interactions. Children under the age of 10 contribute minimally to the transmission of the virus. In the absence of full lockdowns, the impact of school closures on COVID-19 spread is limited due to other forms of social contact within communities. Furthermore, during strict community lockdowns, reopening schools has little effect on overall virus transmission.

With appropriate contact-reducing guidelines, the reintroduction of schools poses minimal risk for the spread of SARS-CoV-2. The study emphasizes the necessity of reducing daily interactions among children and community members to safeguard public health and wellness.

Implications for Future Guidelines

The findings support the argument for prioritizing the reopening of schools. Since existing regulations are primarily based on influenza transmission, it is vital to revise guidelines based on models that assess SARS-CoV-2 transmission, such as those utilized in this research.

References

Lee, B., Hanley1, H. P., Nowak, S., Bates, J. H., & Hébert-Dufresne, L. (2020). Modeling the impact of school reopening on SARS-CoV-2 transmission using contact structure data from Shanghai. BMC Public Health. doi:https://doi.org/10.1186/s12889-020-09799-8

Staff, S. (2020, November 20). SARS-CoV-2 transmission model offers decision-making pathways for safe school opening. Retrieved November 24, 2020, from https://medicalxpress.com/news/2020-11-sars-cov-transmission-decision-making-pathways-safe.html

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