**Appendix 1. The Carso COVID Protocol**

To support the Carso Group (CG) COVID-19 response plan, the Carlos Slim Foundation prepared and designed the Carso COVID Protocol, called the "Recommendations and guidelines for the prevention and management of COVID-19 in an organization". The Protocol has two components, launched at two time points during the course of the pandemic:


This Protocol is based on scientific evidence regarding infectious diseases and the most important available evidence regarding COVID-19 to date. Most recommendations are based on WHO and CDC guidelines and are continuously updated as new evidence becomes available.

The Protocol was designed with consideration for the needs of the different CG workplaces. Nonetheless, each company within the CG has adapted the recommendations to the operational needs of each workplace. For example, most employees in workplace settings that were not considered essential switched to teleworking whereas employees performing activities classified as essential implemented different schemes, such as staggered working schedules. It is noteworthy that the Protocol was implemented at all CG worksites.



*The MONITOR Ecosystem: A Digital Health Intervention for the Early Detection, Control… DOI: http://dx.doi.org/10.5772/intechopen.95260*

#### **Table S1.**

*Supplementary Table 1. Prevention and containment of COVID-19 (summary).*


**Table S2.**

*Supplementary Table 2. Safe return to work (summary).*

*The MONITOR Ecosystem: A Digital Health Intervention for the Early Detection, Control… DOI: http://dx.doi.org/10.5772/intechopen.95260*
