Surveyed wards and households map in Lusaka District. Credit: Sustainable Cities and Society (2025). DOI: 10.1016/j.scs.2025.106799 When the COVID-19 pandemic hit, aid organizations worldwide struggled to identify vulnerable households quickly and fairly. Many people who needed help were left behind. Woojin Jung, an assistant professor at the Rutgers School of Social Work, said she has found a better strategy. Her team has developed a method that blends so