From the Document Purpose: "High-density urban areas may face challenges implementing COVID-19 [coronavirus disease 2019] mitigation measures due to space limitations within and between households and limited water, sanitation, and hygiene (WASH) infrastructure. This document provides suggestions for community mitigation measures in densely populated, international, low-resource settings and describes implementation considerations associated with each measure. Community mitigation activities are actions that people and communities can take to prevent or reduce local COVID-19 transmission. This document describes measures that both individuals and organizations can take to support households in high-density urban areas."
U.S. Centers for Disease Control and Prevention: https://www.cdc.gov/