Background and Objective: The Covid-19 pandemic had an impact on health services. This study aims to analyze actions for health protection and risk reduction related to SARS-Cov-2 in health services. Methods: Exploratory, descriptive research, with qualitative analysis based on interviews with managers of health surveillance services and blood collection units in three Brazilian state capitals. The Iramuteq software was used to process the textual corpus and the Descending Hierarchical Classification was analyzed. Study developed with the support from the National Council for Scientific and Technological Development (CNPq). Results: The study showed characteristics about the organization and conditions of work, about the protection of the health of workers and the population. The work at Health Surveillance during the pandemic reiterates old structural difficulties, staff shortages, insufficient training of teams and managers in the face of challenges in controlling health risks. There was a predominance of action centered on inspection/supervision and insufficient risk communication activity and guidance to the population. Joint actions of inspection, epidemiological surveillance and worker health surveillance were highlighted. Additionally, there were increased computerization, organization of remote work and joint efforts with other sectors. Regarding the effects of the pandemic on blood collection units/hemotherapy services, differences in infrastructure between services were identified. Measures such as the reorganization of the physical space to avoid crowds, measures to protect the health of workers, dissemination of information and various strategies to mobilize candidates and donors were observed. Conclusions: Both services required adjustments in the organization and adaptations in working conditions in order to minimize risks and preserve the protection of the health of workers and the population.