Pedro Gullón
Social epidemiologist and doctor specialising in preventive medicine and public health at the University of Alcalá
This paper analyses how the degree of restrictions in different provinces of Spain is associated with a reduction in covid-19 transmission from the second wave to May 2021.
They find, which is consistent with the literature, that restrictions in hospitality and other indoor settings reduced covid-19 transmission. However, restrictions in mobility and retail did not have a significant effect. This is consistent with the accumulated knowledge on the pandemic in Spain.
Despite the limitations highlighted by the authors (mainly because making indices that homogenise measures against covid-19 is extremely difficult), it represents an advance in the knowledge of the pandemic, which can help us to face future moments.