The Fundação Oswaldo Cruz, commonly known as Fiocruz, is a prominent Brazilian research institution dedicated to public health. Founded in 1900, it focuses on the study and control of diseases, particularly those affecting tropical and subtropical regions. Fiocruz plays a crucial role in vaccine development, epidemiological research, and health policy. Located in Rio de Janeiro, Fiocruz is affiliated with the Brazilian Ministry of Health. It operates several laboratories and research centers, contributing to scientific knowledge and public health initiatives. The foundation also collaborates with international organizations to address global health challenges, emphasizing the importance of research in improving health outcomes.