From: Influence of sample collection tube method, anticoagulant-containing plasma versus serum, on influenza virus hemagglutination inhibition titer and microneutralization titer serological assays
Virus
RT Sera
ACD Plasma
Hep Plasma
Cit Plasma
EDTA Plasma
Type A, H1N1
0 (0%)
1 (3.3%) (higher)
Type B
3 (10%) (1 lower, 2 higher)
1 (3.3%) (lower)