When the virus first arrived in the USA it was found to effect families and people like the elderly living in close quarters similar to families. Now that the virus has expanded it's presence in the USA population the same dynamic of people being close in an environment is holding up by studies conducted about Americans. This is an enormous study and cannot be argued with, there is simply too much information.
10 November 2020
By Serina Chang, Emma Pierson, Pang Wei Koh, Jaline Gerardin, Beth Redbird, David Grusky & Jure Leskovec
The COVID-19 pandemic (click here) dramatically changed human mobility patterns, necessitating epidemiological models which capture the effects of changes in mobility on virus spread1. We introduce a metapopulation SEIR model that integrates fine-grained, dynamic mobility networks to simulate the spread of SARS-CoV-2 in 10 of the largest US metropolitan statistical areas. Derived from cell phone data, our mobility networks map the hourly movements of 98 million people from neighborhoods (census block groups, or CBGs) to points of interest (POIs) such as restaurants and religious establishments, connecting 57k CBGs to 553k POIs with 5.4 billion hourly edges. We show that by integrating these networks, a relatively simple SEIR model can accurately fit the real case trajectory, despite substantial changes in population behavior over time. Our model predicts that a small minority of “superspreader” POIs account for a large majority of infections and that restricting maximum occupancy at each POI is more effective than uniformly reducing mobility. Our model also correctly predicts higher infection rates among disadvantaged racial and socioeconomic groups2–8 solely from differences in mobility: we find that disadvantaged groups have not been able to reduce mobility as sharply, and that the POIs they visit are more crowded and therefore higher-risk. By capturing who is infected at which locations, our model supports detailed analyses that can inform more effective and equitable policy responses to COVID-19.
What this study says overall is that the USA's trend into super spreading is a choice place for understanding the virus. In other words, the American people are very accommodating in spreading the virus so it can be studied and understood. That is not an admirable quality of this country, it is a third world mentality that provides the social dynamic that Americans value their lives less than work and a good time.
But, the research is not about laughing out loud at Americans, it is conducted to hopefully educate them and have them value their own lives enough to end the dangerous behaviors that provided for this research.
There must be a contraction in activity by Americans in social venues KNOWN to be the sources of super spreader events. Americans are supposed to be smart. This study clearly indicates they are not.
