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Effect of TPA leader sequence on the vaccine capacity of Ag2/PRA(19-194) DNA. Results are means ± standard errors for groups of 10 mice immunized with Ag2/PRA(1-194) and Ag2/PRA(19-194) DNA in pVR1012 or Ag2/PRA(19-194) DNA in pVR1020 and sacrificed 12 days after i.p. challenge with 2,500 arthroconidia.
