What we don't understand is why the virus tends to spread slower in winter of colder areas that have even less UV exposure. Places like Berlin and Moscow or MSP and Detroit in the USA. Our guess was people tend to go out less, have a lot less skin exposure with so many people in those location wearing gloves and layers of clothes. Which also makes us think that more transmission from surfaces happen than most people think. Plus those tend not to have the huge international hubs due to frequent poor weather days which may have reduced seeding. It could be the virus just doesn't do as well in freezing temps but we think that is unlikely. Ontario and toronto have been the most outlier of the cold weather places but they avoided early big outbreaks while temps were still cold. Toronto is going to be a city we think has a lot of problems moving forward.