Estimating the impact of reopening schools on the reproduction number of SARS-CoV-2 in England, using weekly contact survey data.
BMC Med
; 19(1): 233, 2021 09 10.
Article
in English
| MEDLINE | ID: covidwho-1403237
ABSTRACT
BACKGROUND:
Schools were closed in England on 4 January 2021 as part of increased national restrictions to curb transmission of SARS-CoV-2. The UK government reopened schools on 8 March. Although there was evidence of lower individual-level transmission risk amongst children compared to adults, the combined effects of this with increased contact rates in school settings and the resulting impact on the overall transmission rate in the population were not clear.METHODS:
We measured social contacts of > 5000 participants weekly from March 2020, including periods when schools were both open and closed, amongst other restrictions. We combined these data with estimates of the susceptibility and infectiousness of children compared with adults to estimate the impact of reopening schools on the reproduction number.RESULTS:
Our analysis indicates that reopening all schools under the same measures as previous periods that combined lockdown with face-to-face schooling would be likely to increase the reproduction number substantially. Assuming a baseline of 0.8, we estimated a likely increase to between 1.0 and 1.5 with the reopening of all schools or to between 0.9 and 1.2 reopening primary or secondary schools alone.CONCLUSION:
Our results suggest that reopening schools would likely halt the fall in cases observed between January and March 2021 and would risk a return to rising infections, but these estimates relied heavily on the latest estimates or reproduction number and the validity of the susceptibility and infectiousness profiles we used at the time of reopening.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
SARS-CoV-2
/
COVID-19
Type of study:
Experimental Studies
/
Observational study
/
Prognostic study
/
Qualitative research
Limits:
Adult
/
Child
/
Humans
Country/Region as subject:
Europa
Language:
English
Journal:
BMC Med
Journal subject:
Medicine
Year:
2021
Document Type:
Article
Affiliation country:
S12916-021-02107-0
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