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Figure 3 | Virology Journal

Figure 3

From: Elevated dietary zinc oxide levels do not have a substantial effect on porcine reproductive and respiratory syndrome virus (PPRSV) vaccination and infection

Figure 3

Development of humoral responses against PRRSV. A and B, PRRSV-specific antibodies measured by ELISA are shown as average sample to positive (S/P) ratios of optical density (OD) from 4 to 35 dpi. Samples with S/P ratios < 0.175 were considered negative (broken line). C and D, Serum neutralization tests were performed by a standard immunofluorescence assay and the results are shown as titers (log2). Samples were considered negative when the dilution was lower than 1:4 (below broken line).

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Virology Journal

ISSN: 1743-422X