I have took a hiv-1 atg p24 test and is negativ hiv , elisa pozitiv and western blot pozitiv i wach my profille at my western blot test and i dont understand what are all that sign * like + + + , - -- what is mean all this ?for exemple gag 120 160 have + + + another only + or +/- or - most off all allso p24 have + +...so what are all this , thancs