H.i.v More Condition_symptoms How Accurate Is The Standard H.I.V Test?

How accurate is the standard H.I.V test? - h.i.v more condition_symptoms

Is it possible to test, completely lost the fight against HIV-organisms in the blood, although the latency period has passed six months ago? And when it was tested more than once in only one case, the error made in the laboratory?

I wonder out of curiosity.