In 2020, beliefs about how to handle a new virus shifted massively. Prior to the Covid-19 pandemic, mainstream epidemiology and public health entities doubted – or even rejected – the efficacy of lockdowns and mass quarantines because they were considered ineffective. This all changed in March 2020, when sentiment flipped in support of lockdown measures.
https://www.aier.org/article/what-they-said-about-lockdowns-before-2020/
