[Confined community health: Reflections and experiences from the local public health.].

This paper aims to share the reflections related to the community actions in which the Agència de Salut Pública de Barcelona has been involved during the emergency of COVID-19. The tasks carried out can be arranged in three stages, frequently overlapping: detection of needs and problems; contact with key stakeholders to assess what to do and how to do it; adaptation of the interventions to the "new normal" and generation of new responses. The emerging problems included: not being able to do the confinement (due to homelessness, material conditions, living in a situation of violence); digital gap (lack of knowledge, devices, access to Wifi); greater exposure to COVID-19 in the essential but precarious, feminized and racialized jobs (care, cleaning, food shops) that are the most frequent in the neighborhoods in where we work; language and cultural barriers that preclude to follow recommendations; to lose employment; insufficient income to cover basic needs; social isolation; and the deterioration of emotional health caused by the situation. During the process, some interventions were adapted to be delivered on-line. Solidarity networks and local resources were key to meet basic needs, but also other needs related to lack of digital knowledge or device. Community action in health, from a critical, intersectional and local perspective, and with intersectoral work and community participation, can contribute to: facilitate a contextualized response in the event of a health crisis; mitigate the effects derived from its economic and social crisis.