The UK Covid-19 Inquiry, chaired by the Rt Hon the Baroness Hallett DBE, published its Module 4 report on vaccines and therapeutics, finding that the UK government, regulators and health systems rapidly developed, authorised and delivered effective vaccines and treatments within a year, supported by strong research capability, coordinated funding, expedited but rigorous regulation and an at-risk procurement strategy, which together reduced severe illness, deaths and pressure on healthcare services. The Inquiry found, however, that preparedness was constrained by limited manufacturing capacity, a narrow focus on influenza planning, weaker capability in therapeutics particularly antivirals and insufficient strategic coordination, while delivery exposed disparities in vaccine uptake, barriers to access and confusion over eligibility for some groups. It also found that regulatory systems maintained safety and independence but required improved access to patient data for monitoring, and that existing compensation arrangements for vaccine injury were inadequate. The Inquiry recommended establishing a standing pharmaceutical expert advisory panel to oversee preparedness, increasing investment in research and manufacturing, improving data sharing for safety surveillance, developing targeted strategies to raise vaccine uptake and reduce inequalities, strengthening evaluation of delivery, and reforming the Vaccine Damage Payment Scheme to provide fairer support.