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A model baiting system suitable for the delivery of an oral rabies vaccine to freeranging raccoons (Procyon lotor) was developed and tested on barrier islands in South Carolina (USA). Features of barrier island physiography and ecology were studied relative to selective bait deployment and site biosecurity. Capture-mark-recapture data were obtained from 228 raccoons. 93 to 100% of placebo baits were consistently disturbed by 7 days post-bait deployment, and bait acceptance rates by raccoons ranged from 49 to 85%, by using a modular systems approach to select the optimum combination of bait attractant, biomarker, matrix, density, and distribution. These results suggest that a large proportion (up to 85%) of a free-ranging island raccoon population can be selectively and safely targeted, marked and monitored utilizing a proposed oral bait delivery system for recombinant or other rabies vaccines.

Abstract. A 6-year (1985-1990) retrospective survey of raccoons with canine distemper infection and an outbreak of the disease in 1988 on South Island, South Carolina, are described. During this epizootic, 3 male raccoons with the clinical disease had gross testicular lesions that, on histopathologic examination, revealed severe diffuse degeneration and mineralization of seminiferous tubules. The testicular pathology of canine distemper in raccoons has not been previously reported.

To find the specific chemical moiety responsible for the disaggregation of polyribosomes after induction of aberrant behavior by d-amphetamine, specific amine blockers and reserpine were utilized. It appears that dopamine is responsible for both the disaggregation of polyribosomes and stereotypic behavior while the roles of serotonin and norepinephrine are not significant in this system.