Several surprising findings were marked: i) the states harboring the most significant coefficients of temperature with epidemic are mainly those along with the Cordillera mountains; ii) virus disseminating velocities in states west of the Cordillera mountains were mildly negatively correlated to wind speed, while those in Great Lakes region were generally positively correlated with wind speed, and those in states of Temperate Grassy climate region were revealed to be independent from wind speed; iii) distribution of coefficients for air pressure showed a trend of more positive in northern area and more negative in southern area of USA. 2.2.
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