hi 20 degrees is 70 f or there about would not call they cold but standing or working in the cold does not make us sick sorry but he has a virus he got that from somebody else perhaps about two days before. any help. good luck
running a temperature of 101. 9 accompanied with a sore throat after being in the cold for a few hours. he worked inside all day and was fine after work he worked on his truck for a few hours and its atleast 20 degrees here came home and all the sudden developed a sore throat and fever of 101. 9 took tylenol stayed down for minimal time now its right back also has chest congestion.