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After 24 transfers in embryonated eggs a strain of variola virus (Chinese) was established in the testis of the rabbit and maintained for 11 passages at intervals of 7 days. Residence in the rabbit testis was not accompanied by any significant alteration in the species identity of the virus. A...
1. A soil bacillus has been isolated capable of developing specific adaptive enzymes which oxidize PABA apparently to carbon dioxide, water, and ammonia. A few related compounds which, however, do not give the diazo reaction are similarly attacked. 2. This bacillus is also capable of developing...
"Alkaline" phosphatase disappears or only remains in small amounts in the rabbit and rat kidney after periods of hydronephrosis of 2 to 5 days or more, following complete obstruction of the ureter. By the use of the Gomori-Takamatsu technique it has been possible to distinguish normally...
Passive immunity, naturally acquired from immune mothers or artificially induced through the administration of immune rabbit serum, conferred on suckling mice of the albino Swiss strain a high degree of resistance against herpetic infection following the intranasal instillation of the virus....
Intranasal instillation of herpes virus in suckling mice results in specific lesions widely distributed in the viscera. The lungs are infected by aspiration of the virus. Virus disseminated by way of the blood establishes itself in endothelium in certain situations where parenchymal lesions...
1. The South American ringtail monkey, Cebus capucina , has been infected with the virus of poliomyelitis as found in ultracentrifuged concentrates from poliomyelitic human stools. 2. This species was also found susceptible to poliomyelitis virus found in rhesus and cynomolgus monkey cords,...
1. St. Louis virus has been successfully transmitted in the laboratory by the following 9 species of mosquitoes from 3 genera: Culex tarsalis, Culex pipiens, Culex coronator, Aedes lateralis, Aedes taeniorhynchus, Aedes vexans, Aedes nigromaculis, Theobaldia incidens , and Theobaldia inornata ....
The virus-induced papillomas of cottontail as well as domestic rabbits regress completely within a few weeks when exposed to 5,000 r of x-ray irradiation. The x-rays do not immediately kill the papilloma cells, but lead to death by inhibiting cellular division and producing pathological changes...
Instilled intranasally into suckling mice, a mouse-passaged strain of herpes virus (HF) reaches the brain by both the trigeminal and olfactory pathways. Footnotes Submitted: 1 May 1943
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