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Additional file 1. Table S1. Reported symptoms of all participants with sample collected (and tested) for serologic antibody test on same day as sample that resulted in RT-PCR positive for SARS-CoV-2 (n=492); no symptom duration outliers excluded. Table S2. Reported symptoms of all participants with sample collected (and tested) for serologic antibody test on same day as sample that resulted in RT-PCR positive for SARS-CoV-2 (n=492); mild and extreme symptom duration outliers excluded. Table S3. Sensitivity of the rapid antibody test# by symptom duration and outlier exclusion criteria. Fig. S1. Plots of antibody test sensitivity against the number of weeks since onset of symptoms among those who reported at least one symptom before testing, using the RT-PCR test as the reference, stratified by the types of outliers excluded in the analysis: extreme outliers, which were defined as persons whose time since symptom onset was longer than the third quartile plus 3 times the interquartile range (IQR, defined as the difference between the first and third quartile of the reported times since onset for a given symptom); mild outliers were those beyond the third quartile plus 1.5 times the IQR); or no outliers excluded. The circles show the crude estimated sensitivity and the error bars show the Wilson’s score 95% confidence intervals. The plotted lines are the fitted segmented linear regressions for the rapid antibody tests. Table S4. Segmented regression analyses of antibody test sensitivity by weeks since symptom onset, by symptom duration outlier exclusion criteria. Table S5. Overall antibody test sensitivity* per week since symptom onset for common symptoms. Table S6.Segmented regression analyses of antibody test sensitivity versus weeks since symptom onset, by symptom.

AGC Electrónica, empresa fundada en el año 1989, en la ciudad de Santiago de Cali, por Albeiro Giraldo Castro, se consolida como un centro de servicio y soporte técnico para equipos de audio y video a nivel empresarial y de hogar. Durante 6 meses, José Felipe Giraldo y Santiago Palomino, estudiantes de la Universidad Icesi, desarrollaron de manera investigativa y desde la academia su Proyecto de Grado, basados en su conocimiento y bajo la tutoría del profesor Edgar Sarria, con miras a una nueva y mejor Planeación Estratégica. En este documento se hallará de manera estructurada los cimientos de la empresa, la investigación de múltiples autores que respaldan con su teoría lo aquí realizado y el proceso por el cual se planificaron y diseñaron planes viables para la empresa.