From the Document: "Routine planning for mass gatherings includes conducting risk assessments to determine the overall risk of disease spread connected to a mass gathering. In view of the current outbreak of COVID-19 [coronavirus disease 2019], the World Health Organization (WHO) has developed this risk assessment tool for religious events. The assessment include a risk evaluation, risk mitigation, and risk communication strategy developed for use by host countries and organizers of mass gathering to assess the specific risk of COVID-19."
2020 World Health Organization. Posted here with permission. Document is under a Creative Commons license and requires proper attribution and noncommercial use to be shared: [http://creativecommons.org/licenses/by-nc-sa/3.0/]
World Health Organization: https://who.int/