Can a four-month-old dog have rabies? Whether a four-month-old dog will have rabies depends on the situation. A dog that has been bitten by a dog with the rabies virus during its formative years or has been infected with the rabies virus through other means of transmission will have rabies. Dogs will die 100% within 2-3 days after a rabies attack. Dogs that do not die within 10 days can be determined to be rabies-free.
