Comunicazione
Studies of diffusion of Covid-19 on latitude.
Nassisi V., Alifano P., Calcagnile M., Tredici M.S.
We analyse the incidence of Covid-19 as a function of latitude and in particular on the temperature variation during the morning up, and in the afternoon down, and other factors that justify the spread of the pandemic in the world and in Italy. The pandemic peaks as a function of latitude correspond around $-25 (^\circ)$ and $+50 ($^\circ )$. Similar results are also confirmed in 2022 and 2023. Therefore, after more than three years of the Covid pandemic, there are enough data to study the cyclicality of the contagion. We have studied the cyclicality of daily cases and new cases. For Italy, the total cases present an exclusively positive dependence on latitude. It was compared with other cyclicality and with the occurrence of different variants.