Ebola 1 21 (95%), 42 (98%) days as per on

Ebola 1 21 (95%), 42 (98%) days

as per online sources 5% of ebola victims wont show symptoms even at 21 days, 2% wont show at even 42 days but thats why 1 article shows liberia was expecting to wait 42 days before declaring free

during the incubation period the infection is present in the body so its hard to imagine not being able to detect antibodies or pathogens-yet the implication of the news stories is they are not yet able to until a person is symptomatic.
If this is true it would seem to be a scientific quest to be able to diagnosis during the incubation period so quarantines of 21 days would not be necessary.

Bashers here have implied that tech already exists but if so it its not being used as per news stories.

I was wondering whether this was a hardcore or softcore tech problem.
An example of a hardcore tech problem or something not solvable via tech would be trying via human tech to accelerate an object to the speed of light -since the geometric energy curve to do would make that impossible and run into practical problems also such as a meteorite which would punch only a small hole at 25000 mph would punch a huge hole at higher speed
softcore tech would be PC guys repeatedly saying in the past there was a limit to how much progress could be made w PC chips -only to have that limit broken by new tech time and time again.

it seems w the amazing DNA (it takes a huge room just to fill w volumes on human DNA and it goes beyond the volume required to record the entire genome) RNA ,mitochondria far more efficient than the best human designs etc that the human body would begin reacting during the incubation time frame to the infection and diagnostic methods could detect that reaction.
Again this is outside my fields of interest/comfort zone so maybe I'm missing something.