... Ratio (M-H, Random, 95% CI) 0.87 [0.49, 1.53]1.3 Outbreak - vaccinematching - nursing home - healthy1 4180 Risk Ratio (M-H, Random, 95% CI) 0.54 [0.37, 0.80]1.4 Outbreak - vaccinematching - psychiatric ... (M-H, Random, 95% CI) 0.35 [0.13, 0.92]2 Influenza 3 2217 Risk Ratio (M-H, Random, 95% CI) 0.42 [0.27, 0.66]2.1 Outbreak - vaccinematching - community - healthy and ill1 1838 Risk Ratio (M-H, ... home - healthy and ill1 202 Risk Ratio (M-H, Random, 95% CI) 0.50 [0.20, 1.25]3 Pneumonia 1 699 Risk Ratio (M-H, Random, 95% CI) Not estimable3.1 Outbreak - vaccinematching - community - healthy1...