The #evolution of #COVID19 #pandemic #wave n.1 in the #world (a-f phases without a real decrease): the #second wave start in #Winter 2021 with a very #strong #increase of the new #infects (#contagion #rate) or #positive >>> https://t.co/sm4dHOkM28 https://t.co/lfhPJiW02NThe #evolution of 1689321 The #evolution of #COVID19 #pandemic #wave n.1 in the #world (a-f phases without a real decrease): the #second wave start in #Winter 2021 with a very #strong #increase of the new #infects (#contagion #rate) or #positive