London: Three people are being treated for exposure to rabies after they were bitten by a puppy brought in from Sri Lanka, the British government said on Saturday.

The puppy was being held in a licensed quarantine premises in the south-east of England when it became ill. It later died.

Initial tests showed positive results for a strain of rabies. The three people are being vaccinated.

Other animals that have been moved from the kennels are being traced and monitored.

Rabies is a viral disease of the nervous system and can affect all mammals. It is spread by direct contact mainly by saliva from the bite of an infected animal or through scratches.