Fig. 1From: High vaccination coverage is associated with low epidemic level of seasonal influenza in elementary schools: an observational study in Matsumoto City, JapanAssociation between infection control measures and reproduction number. a The proportion of subjects vaccinated showed a significant negative correlation with reproduction number (ρ = −0.413, p = 0.029). However, b mask wearing, c hand washing and d gargling with water were not significantly associated with reproduction numberBack to article page