The UK Health Security Agency (UKHSA) has announced staffing changes in the organization's leadership. New members have joined the agency's executive committee, appointed to the positions of Chief Medical Advisor and Chief Scientific Officer. These positions are key to shaping the scientific and medical policy of the agency, which is responsible for protecting the health of the British population, including combating infectious diseases, preparing for health emergencies, and developing evidence-based recommendations. The appointment of new leaders to these posts reflects UKHSA's current priorities in strengthening scientific and medical expertise within the organization. The Chief Medical Advisor will be responsible for advising the agency's leadership on matters of clinical practice and medical policy, while the Chief Scientific Officer will oversee scientific research and development, ensuring an evidence base for decision-making. UKHSA was established as an executive agency under the UK Department of Health and Social Care to consolidate public health functions that were previously distributed among several organizations. The update to the executive committee composition is part of the regular personnel management process within the agency and is aimed at strengthening its institutional capacity to respond to threats to public health.