Pfaff, G.; Du Toit, P.J.(Pretoria : The Government Printer, 1938)
(a) The various methods of immunizing against rinderpest are briefly summarised, the use of goat adapted virus being dealt with more fully.
(b) Experiments leading up to the production of a vaccine prepared from dried ...
Pfaff, G.; Du Toit, P.J.(Pretoria : The Government Printer, 1940)
1. The dose of dried goat spleen vaccine has no influence on
the reaction produced.
2. Immunity is not acquired by contact with reacting buffaloes.
3. Long-drawn-out reactions may be due to infection soon after ...
