107induced infection with Type B influenza virus increased resistance of human individuals to for at least one to 4 months. These data infection with virus of Type -4 or Type B. together with those in the preceding paper Further details will be reported subseshow that the same mixed vaccine induced an quently. P Effect of Biotin Deficiency on the Course of Plasmodium l o p h u r eInfection in Chicks. -4.0. SEELER, ~YALTHER H. OTT, AND 1 1 m Y E. GUNDEL. (Introduced by H. Nolitor.) From the M e w k I i i s t i t u t e f o r Tlierapctrfic~ Hcsi < i w I i , Rnliwcc!y, S . J .

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