Trajectories of COVID-19: A longitudinal analysis of many nations and subnational regions.

ABSTRACT: The COVID-19 pandemic is the first to be rapidly and sequentially measured by nation-wide PCR community testing for the presence of the viral RNA at a global scale. We take advantage of the novel "natural experiment" where diverse nations and major subnational regions implemented various policies including social distancing and vaccination at different times with different levels of stringency and adherence. Initially, case numbers expand exponentially with doubling times of ~1-2 weeks. In the nations where interventions were not implemented or perhaps lees effectual, case numbers increased exponentially but then stabilized around 102-to-103 new infections (per km2 built-up area per day). Dynamics under effective interventions were perturbed and infections decayed to low levels. They rebou

SUBMITTER: Burg D 

PROVIDER: S-EPMC10289358 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature