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X-Antigen-freie Mutanten von Proteus OX19

A phage specific for Proteus X 19 and X 2 strains is described. The secondary growth appearing after lysis of OX 19 cultures is devoid of the X-Antigen reacting with typhus sera. The phage is inactive against ...

H. R. Marti, R. Ben Gurion in Experientia (1949)