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. 2004 Jun 8;111(2):121–130. doi: 10.1016/j.jbiotec.2004.03.012

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Copyright © 2004 Elsevier B.V. All rights reserved.

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Fig. 6 — Concentration of IL-2 secreted by in vitro culture of spleen cells from the vaccinated chicks at the 14th day after third immunization. Absorbency (OD₄₀₅) represents the mean absorbance ± the standard error obtained from three independent assays. Oral2.5 and Oral5 represent chicks immunized orally with 2.5 and 5 g transgenic potato tubers, respectively. In2.5 and In5 indicate chicks vaccinated intramuscularly with the extracts of 2.5 and 5 g transgenic potato tubers, respectively. Vaccine, commercial modified live IBV vaccine. Control, non-transgenic potato plant.