In our previous communications1 we have shown that the monkey (Macacus rhesus and Macacus cynomolgus) is susceptible to the infection of measles when inoculated with the blood obtained from a human case late in the preeruptive stage or within twenty-four hours after the first appearance of the eruption. Following such an inoculation,2 at least 50 per cent. of the animals react in a characteristic manner. After a variable incubation period of not less than five days there is a more or less marked rise in temperature with or without catarrhal symptoms referable to the respiratory passages, such as sneezing and cough, and with or without an exanthem.
About half the animals inoculated fail to present definitely recognizable symptoms. In other words, the disin the monkey is subject to great variation, the variations corresponding to those that have been described in the human subject and presenting in some respects
GOLDBERGER J, ANDERSON JF. AN EXPERIMENTAL DEMONSTRATION OF THE PRESENCE OF THE VIRUS OF MEASLES IN THE MIXED BUCCAL AND NASAL SECRETIONS. JAMA. 1911;LVII(6):476–478. doi:10.1001/jama.1911.04260080040012
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