Alliance for Pandemic Preparedness

March 19, 2020

Correcting under-reported COVID-19 case numbers



  • This study suggests that the current reporting of COVID-19 cases in most countries is significantly underestimating the true scale of the pandemic. The lack of testing makes it difficult to estimate the true incidence and fatality rates. 
  • The author highlights the importance of publicly accessible real-time data and the relevance of combining global healthcare efforts.

Lachmann (Mar 14, 2020). Correcting under-reported COVID-19 case numbers. Pre-print downloaded Mar 19 from