Fig 1.
Theoretical framework of epidemic phases based on Farr’s law.
Table 1.
Total cases, deaths, and Farr’s ratios associated with COVID-19 pandemic, per country until April 10, 2020.
Fig 2.
Geographical representation of Farr’s ratios of the COVID-19 pandemic.
First ratios represent a percent increase in the epidemic dynamic, and second ratios represent epidemic acceleration. A and B depict the first ratios for the new cases and deaths, respectively. C and D represent the second ratios for new cases and deaths, respectively. The calculations are based on worldwide data until April 10, 2020.
Table 2.
Countries with higher Farr’s ratios associated with COVID-19 pandemic.
Fig 3.
Worldwide COVID-19 new cases and deaths incidence predicted by Farr’s law.
(A) New cases and (B) deaths incidence (and 95% CI). The calculations are based on worldwide data until April 10, 2020.
Fig 4.
Prediction of new cases per country predicted by Farr’s law.
A) USA prediction—the country with a higher incidence in the world. B) Prediction for quartile 1. C) Prediction for quartile 2. D) Prediction for quartile 3. E) Prediction for quartile 4. The quartile division is based on the number of new cases. Only 70 countries are included in this prediction analyses, due to the lack of data and failure to meet the assumptions criteria. The calculations are based on worldwide data up to April 10, 2020.
Fig 5.
Prediction of new deaths per country predicted by Farr’s law.
A) USA prediction—the country with a higher incidence in the world. B) Prediction for quartile 1. C) Prediction for quartile 2. D) Prediction for quartile 3. E) Prediction for quartile 4. The quartile division are based on the number of deaths. Only 68 countries are included in this prediction analyses, due to the lack of data and failure to meet the assumptions criteria. The calculations are based on worldwide data up to April 10, 2020.