Internet-based monitoring of influenza-like illness and lower respiratory tract infections in elderly CAPiTA participants

Phase 3, randomised, double-blind trial in influenza-like illness (ILI), pulmonary infection and pneumococcal community-acquired pneumonia comparing 13-valent pneumococcal conjugate vaccine background group with Placebo background group (2 arms). Primary endpoint: Incidence of first self-reported influenza-like illness episode. Started Nov 2010; status: recruiting.