Citação:
Our analysis revealed that mobility patterns are strongly correlated with decreased COVID-19 case growth rates for the most affected counties in the USA, with Pearson correlation coefficients above 0·7 for 20 of the 25 counties evaluated. Additionally, the effect of changes in mobility patterns, which dropped by 35-63% relative to the normal conditions, on COVID-19 transmission are not likely to be perceptible for 9-12 days, and potentially up to 3 weeks, which is consistent with the incubation time of severe acute respiratory syndrome coronavirus 2 plus additional time for reporting. We also show evidence that behavioural changes were already underway in many US counties days to weeks before state-level or local-level stay-at-home policies were implemented, implying that individuals anticipated public health directives where social distancing was adopted, despite a mixed political message.
Citação:
This study strongly supports a role of social distancing as an effective way to mitigate COVID-19 transmission in the USA. Until a COVID-19 vaccine is widely available, social distancing will remain one of the primary measures to combat disease spread, and these findings should serve to support more timely policy making around social distancing in the USA in the future.
Essencial saber que existem diversos outros estudos que evidenciam o contrário desse citado. Sendo que os três mais importantes foram publicados (dois deles na Nature, revista científica mais importante do mundo), e indicam com um alto nível de evidência a efetividade das políticas de combate ao Covid. Seguem os estudos com seus respectivos links, para vocês poderem ler e não ficarem acreditando em matéria de jornaleiro politicamente comprometido (ou só burro mesmo):