Lucila RozasLuciana CastronuovoPeter BusseSophia MusJoaquín BarnoyaAlejandra GarrónMaría Victoria TiscorniaLeila Guanieri2026-03-222026-03-22202110.1186/s13104-021-05870-8https://doi.org/10.1186/s13104-021-05870-8https://andeanlibrary.org/handle/123456789/49003Citaciones: 9enCoronavirus disease 2019 (COVID-19)Latin AmericansSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)2019-20 coronavirus outbreakAdvertisingMarketingFood labelingBusinessInternet privacyData scienceData on the Facebook marketing strategies used by fast-food chains in four Latin American countries during the COVID-19 lockdownsarticle