Association of tiered restrictions and a second lockdown with COVID-19 deaths and hospital admissions in England: a modelling study, The Lancet Infectious Diseases

Study estimates tier 2 restrictions result in a 2% reduction effective reproduction number, tier 3 restrictions result in a 10% reduction, and Northern Ireland and Wales stringency lockdown with school closures results in a 35% and 44% reduction respectively.
Source: Current Awareness Service for Health (CASH) - Category: Consumer Health News Source Type: news