Análisis sobre la evolución del COVID-19 en Colombia: ¿se alcanzará el pico de contagio?
An analysis of the evolution of daily COVID-19 cases and number of deaths in Colombia and some Colombian cities is carried using official information reported by the Ministry of Health. This seeks to answer the following question: Considering the current trajectory of the new coronavirus, is it possible to estimate the future peak of infections? From the construction of a panel data structure, some models with a time quadratic trend are estimated for the number of infections and deaths logarithm. The estimation of such dynamics by the rolling window regression method shows a good fit, allowing to estimate the approximate date for the peak of the epidemic based on the new officially reported cases. Some factors associated with the progression of the pandemic are estimated, especially the effect of the speed of contagion (effective reproduction rate, Ro) on the future trajectory of daily infections. In addition, an attempt to estimate the impact of preventive social distancing measures adopted by national and regional authorities is performed. Results show that the peak of the pandemic in Colombia will be reached approximately at the end of August; finding that agrees with more elaborate epidemiological studies. The average number of new daily cases at the peak of the pandemic in Colombia would reach more than 10,000, while the maximum number of deaths would be 44,471. Estimates about the impact of confinement measures show that it is possible to delay the peak and reduce the number of infections and deaths.