Basically I would be happier if everyone wore masks.Fever can be due to many illnesses and sometimes can be normal as some fall out of the normal range and can have a temp a bit higher or lower than 37C.Then things such as stress,heavy exercise-eg running when unfit as you are late to check in.And would you deny boarding for a menopausal woman who can have a fever.Though if the fever was due to someone having a hit of ice or cocaine I wouldn't mind them being denied boarding.The positives and positive-asymptomatics are the million dollar question aren't they? drron I'm interested in your medical view of whether and how QF and other airlines should screen pax at the airport. Should they use temperature screening and deny boarding to the febrile as one measure?
There are many more infections than Covid.Some positive for Covid don't develop a fever.Other illnesses such as an autoimmune disorder,cancer or thyrotoxicosis can be a cause of fever.
At the height of Covid pandemic it possibly was reasonable to check temps but now it is of doubtful use.