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Atypical myxomatosis

Crusting circular skin lesions can occur without systemic signs in some rabbits, especially vaccinated ones. This syndrome may called 'atypical myxomatosis' and is probably due to mild infection in rabbits with partial immunity. The lesions are typical of rabbits that recover from myxomatosis. They eventually crust over and drop off. The rabbit shown in this picture made a full recovery. She was vaccinated but exposed to myxomatosis during a severe outbreak in neighbouring wild rabbits.