Impact of COVID-19 on household hunger and socio-economic inequality in South Africa: a comparative analysis using NIDS-CRAM (2020-2021) and NFNSS 2022 data. - Lukwa AT; Chiwire P; Akinsolu FT; Bodzo P; Okova D; Maseko SC; Mokhele T; Parker WA; Mjimba V; Simelani T; Hongoro C (Frontiers in public health, 2026)