Fig. 1From: Performance of ELISAs for detection of antibodies against porcine respiratory and reproductive syndrome virus in serum of pigs after PRRSV type 2 live vaccination and challengeBoxplots of S/P values, respectively OD values of all PRRSV Ab ELISAs tested. Vaccinated group: vaccination with a PRRSV live vaccine at day −42 (see arrow), both groups: challenge with an HP PRRSV field strain at day 0 (see arrows), red lines: cut-off of the ELISAsBack to article page