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Macacus rhesus and Macacus cynomolgus exhibit a striking sensitivity to the presence of the virus of poliomyelitis on the nasal mucous membranes. Irrespective of whether detectable symptoms of clinical poliomyelitis do or do not arise in the nasally instilled animals, the cerebrospinal fluid...
1. The waxes from the B. leprae , like those from tubercle bacilli, are remarkable stimulants of cells. 2. The crude wax separated from the B. leprae is a mixture of lipoids and other materials, and gives reactions that include the types of cells characteristic of the response to the...
1. Rabbits injected intravenously with a large dose of a virulent Type III Pneumococcus develop a bacteremia, and within an hour organisms may be cultivated from the thoracic duct lymph. The rapidity with which entrance into the lymph occurs appears to be correlated with the size of the dose...
Swine influenza virus was found to be regularly present in the turbinates, tracheal exudate and lungs of infected swine but not in the spleens, livers, kidneys, mesenteric lymph nodes, colon mucosae, brains or blood. It was present in low concentration in the bronchial lymph nodes of 2 out of 8...
Using ragweed hay fever as the representative of a certain type of allergy we have made studies to determine if possible the mechanism of the protection afforded by specific injections thus far established only by clinical observation. 1. Blood transfusions and serum injections from clinically...
1. A protection test for measuring serological protective properties against the encephalitis (St. Louis type) virus is described. 2. Normal non-contact sera and sera from persons supposed to have had no exposure to the disease do not protect against the virus. 82.5 per cent of sera from tested...
1. The unsaponifiable fractions of the Mycobacteria, though insoluble in water and extremely stable chemical compounds, are nevertheless remarkable stimulants of cells. 2. They give rise to new monocytes which surround these waxes and then fuse into giant cells which engulf them. 3. The property...
1. It has not been possible to increase the virulence of the submaxillary gland viruses of guinea pigs and rats, either by reducing the resistance of the animals by exposure to X-ray, or by the addition of testicular extract (Duran-Reynals factor). 2. In guinea pigs and wild rats with...
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