What analyses on presence of infections are more authentic": a smear, or the analysis of a blood and...

[Pasha]

What analyses on presence of infections are more authentic": a smear, or the analysis of a blood from a vein?

[New settlers V.S.]

The analysis of a blood is a revealing antibodies which the organism develops or produces on originators. The smear is a revealing the originator from that place where he is.