Comparison IFA – ELNA
IFA gave 94% positive results, 6 more than ELNA, in the sera of T1 and
the highest decrease of antibodies until T5 (n = 7; 65.6%; decrease of
28.4%). Two of the seven sera, which proved negative in IFA, were also
negative in ELNA, the others were weak positive with titers around 1:4
in ELNA, as shown in table 2.