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| Raccoon: US Fish & Wildlife |
Just four of the 26 wild-caught, captive raccoons that were fed an oral rabies vaccine on bait developed an immune response to the disease, a Canadian study has found. The raccoons that that received the vaccine by intramuscular injection were more likely to develop an immunity response (18 out of 27). When infected with rabies over a year after vaccination all the raccoons that developed an immune response after the vaccine survived, whether the vaccine was delivered orally or by injection.