Dr Beatriz Elena Guerra Sierra is a microbiologist and biotechnology researcher, specialising in microbial ecology and the bioprospecting of bioactive secondary metabolites. Her research focuses on the isolation, characterisation, and functional evaluation of secondary metabolites produced by bacteria and fungi from diverse ecosystems, including endophytic microorganisms. She investigates their potential as sources of novel antiparasitic, antimicrobial, and antioxidant compounds for applications in human health and agro-environmental systems. Dr Guerra has a strong academic background in biological sciences and has contributed to interdisciplinary research integrating natural products chemistry, parasitology, and plant–microbe interactions. Her work aims to advance sustainable biocontrol strategies based on microbial metabolites within a One Health framework, supporting disease management, biodiversity conservation, and ecosystem resilience.