Before revision:  It does so by studying the use of language on 39M social media posts in US about the COVID-19 pandemic , which is the first pandemic to spread this quickly not only on a global scale but also online.We identified three distinct phases , which parallel Kuebler-Ross's stages of grief . Each of them is characterized by different regimes of the three social epidemics: in the refusal phase, people refused to accept reality despite the increasing numbers of deaths in other countries ;
After revision:  It does so by studying the use of language on 39M social media posts in US about the COVID-19 pandemic posted in the U.S. during the whole year of 2020. On Twitter, we identified three distinct phases , which parallel Kuebler-Ross's stages of grief . Each of them is characterized by different regimes of the three social epidemics: in the refusal phase, people refused to accept reality despite the increasing numbers of deaths in other countries ;