In our supplemental note1 we published in some detail the experiments of which our first note2 was a brief summary. It will be recalled that up to that time we had inoculated nine rhesus monkeys with blood from four human Patients with measles, and that of these animals only four (Nos. 38, 12, 6 and 8) had given any very significant evidence of a reaction, and that only two of these (Nos. 6 and 8) were clearly marked. In other words, of nine animals inoculated only two gave unmistakable reactions, two others gave reactions that we regarded as significant, while in the remaining five a reaction was either not appreciable or at most only suggestive. This result we were at first disposed to regard as due to a low degree of susceptibility in the monkey, combined with a a considerable degree of individual variation.
In spite of this
ANDERSON JF, GOLDBERGER J. THE PERIOD OF INFECTIVITY OF THE BLOOD IN MEASLES. JAMA. 1911;LVII(2):113–114. doi:10.1001/jama.1911.04260070117011
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