Characteristics of A(H3N2) influenza cases (N = 375) and test-negative controls (N = 770) swabbed less than five days after ILI symptoms onset included in the study, hospital based Influenza VE study, EU, 2011–12.
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*N = 814 (one record with missing information).‡Two-sided Fisher’s exact test.
创建时间：
2015-12-02
