Estimates of influenza vaccine coverage from Victorian surveillance systems based in the community, primary care and hospitals

Victoria (and Australia) currently has no routine means of measuring influenza vaccination coverage among adult groups that are eligible for publicly funded vaccine. This paper examines vaccination coverage during 2010-14 for Victorian patients recruited by Flutracking, an online community influenza-like illness surveillance system, VicSPIN, a general practice-based surveillance system, and FluCAN, a hospital-based sentinel surveillance system, to assess whether together these three systems might provide timely estimates of vaccine coverage for high-risk adult groups.