Figure 2 | Scientific Reports

Figure 2

From: Geographical variation in the risk of H7N9 human infections in China: implications for risk-based surveillance

Figure 2

Cross correlation of H7N9 poultry serological prevalence and virological prevalence relate to H7N9 human cases (A,B), and cross correlation of H7N9 serological prevalence relate to virological prevalence (C). The correlation of sero-prevalence at Lag −2 is approximately 0.49, and the correlation of viro-prevalence at Lag −1 is approximately 0.37. The correlations are significant because the values are greater than [2/ (Sqrt (n-|lag | ))), n = 48].

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