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Browsing 1939 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 13, 1939 by Author "Alexander, R.A."
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Alexander, R.A.; Mason, J.H.; Neitz, W.O.; Du Toit, P.J.
(The Government Printer, Pretoria, 1939)
Research work into heartwater, a disease of sheep, goats and cattle caused by Rickettsia ruminantium (Cowdry 1926) has been hampered to a very great extent by the lack of a susceptible small laboratory animal. Up to the ...
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Alexander, R.A.; Mason, J.H.; Du Toit, P.J.
(The Government Printer, Pretoria, 1939)
In the previous article (this journal) details were given of the source and method of isolation of five strains of rickettsia. These strains have been maintained either by serial passage in guinea pigs, or by cultivation ...
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Mason, J.H.; Alexander, R.A.; Du Toit, P.J.
(The Government Printer, Pretoria, 1939)
1. The effect of the rickettsias of rat typhus, tick-bite fever, fievre boutonneuse, and of two other tick-bite-fever-like diseases
(" Hare " and "Appleton ") on the guinea-pig, rat, mouse, rabbit, dog, sheep, and ox is ...
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Mason, J.H.; Alexander, R.A.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
1.The five strains of rickettsia are discussed and compared according to the criteria suggested by Pinkerton (1936).
2. It· is concluded that they fall into two groups:
(a) Typhus group – endemic, murine or rat ...
