KNN my uncle think they are not going to inject directly out from the freezing special fridge KNN when they say need -70deg it only means it need this temperature to keep alive KNN by the time is going to be injected it should already be in normal vaccine temperature KNN if you inject -70deg into human body the human will get a heart attack shortly KNN injection is painful due to the concentration of the fluid not the temperature KNN eg potassium is 1 that is more painful than other electrolytes KNN