Hi. A few weeks ago I had a trip to UK and a friend bought 2 test to bring them to South America . I made both very out of window period and was negative. What are the odds that both are false negative being from same lot of production? Im concerned that the tests during the travel may have been afected by the temperature in the hold of the plane , and I dont know if they are less than 8 degrees or greater than 30 degrees. If the control line appears, nothing happen?
Thanks for your help.