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Revista de Salud Pública
versión impresa ISSN 0124-0064
Resumen
MANRIQUE-ABRIL, Fred G. et al. SIR model of the COVID-19 pandemic in Colombia. Rev. salud pública [online]. 2020, vol.22, n.2, pp.123-131. Epub 07-Abr-2020. ISSN 0124-0064. https://doi.org/10.15446/rsap.v22.85977.
Objective
To develop a prognostic SIR model of the COVID-19 pandemic in Colombia.
Materials and Methods
A SIR model with a deterministic approach was used to forecast the development of the COVID-19 pandemic in Colombia. The states considered were susceptible (S), infectious (i) and recovered or deceased (R). Population data were obtained from the National Administrative Department of Statistics (DANE) - Population Projections 2018-2020, released in January 2020-, and data on daily confirmed cases of COVID-19 from the National Institute of Health. Different models were proposed varying the basic reproduction number (R0).
Results
Based on the cases reported by the Ministry of Health, 4 simulated environments were created in an epidemiological SIR model. The time series was extended until May 30, the probable date when 99% of the population will be infected. R0=2 is the basic reproduction number and the closest approximation to the behavior of the pandemic during the first 15 days since the first case report; the worst scenario would occur in the first week of April with R0=3.
Conclusions
Further mitigation and suppression measures are necessary in the containment and sustained transmission phases, such as increased diagnostic capacity through testing and disinfection of populated areas and homes in isolation.
Palabras clave : Pandemics; Colombia; coronavirus infections; transmission; basic reproduction number (source: MeSH, NLM).