Meteorological factors

Correlation coefficient

p value


Mean temperature (°C)

0.259

0.002

Mean relative humidity (%)

−0.126

0.024

Mean wind speed (m/s)

−0.190

0.736

Sunshine duration (h)

−0.006

0.426

The regression model adjusted R^{2} = 0.231, p < 0.001

Mean temperature in the preceding month (°C)

0.328

< 0.001

Mean relative humidity (%)

−0.083

0.039

Mean wind speed (m/s)

−0.453

0.317

Sunshine duration (h)

−0.014

0.051

 Multiple linear regression analysis was performed using HBoV1 monthly prevalence as the dependent variable, monthly mean temperature (or mean temperature in the preceding month), mean relative humidity, mean wind speed and sunshine duration as the independent variables
 Data captured in bold are highly significant