World risk map with current percentage of active infectious cases (4)

(Updated daily)

Can't see the graph?

Estimates of active infectious cases per country (4)

(Updated daily)

Can't see the graph?

Cumulative COVID-19 cases estimates obtained by CoronaSurveys (3)

(Updated daily)

Can't see the graph?

Cumulative COVID-19 cases estimates per country (1, 2, 3)

(Updated daily)

Can't see the graph?

Can't see the table?

Further Reading

Source of data on confirmed cases and deaths: European Centre for Disease Prevention and Control.

(1) CoronaSurveys estimates using the cCFR-based technique described in Section 3.1 of CoronaSurveys: Using Surveys with Indirect Reporting to Estimate the Incidence and Evolution of Epidemics.. Based on Hiroshi Nishiura et al. Early Epidemiological Assessment of the Virulence of Emerging Infectious Diseases: A Case Study of an Influenza Pandemic. Plos One. August 31, 2009. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0006852.

(2) CoronaSurveys estimates using the Country based approach (using 30 responses) described in Section 2.2 of CoronaSurveys: Using Surveys with Indirect Reporting to Estimate the Incidence and Evolution of Epidemics.. (CI-L, CI-H) is the 95% confidence interval computed as described there. Corresponds to the latest date with sufficient cumulative number of survey responses. The label “undefined” is used when there are not enough survey responses to compute estimates.

(3) CoronaSurveys estimates using the Region based approach (using 300 responses) described in Section 2.2 of CoronaSurveys: Using Surveys with Indirect Reporting to Estimate the Incidence and Evolution of Epidemics.. (CI-L, CI-H) is the 95% confidence interval computed as described there. Corresponds to the latest date with sufficient cumulative number of survey responses. The label “undefined” is used when there are not enough survey responses to compute estimates.

(4) Estimating active cases of COVID-19: The unknown matters.