Browsing 1948 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 23, 1948 by Subject "Thesis"

Browsing 1948 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 23, 1948 by Subject "Thesis"

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  • Neitz, W.O.; Du Toit, P.J. (Pretoria : The Government Printer, 1948)
    1. Complaints that the present method of immunization against bluetongue is not safe and that it produces an inadequate immunity have been justified. 2. A plurality of antigenically different virus strains has been ...