One councillor in Port Tennant near Swansea, Clive Lloyd, told ITV News the local community would rally round following the death of a 25-year-old man.
An investigation is underway to find out if measles was responsible.
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In 52 cases the offending dog had to be shot
It might be easier said than done, given their continued prolific form for Ireland.
World Encephalitis Day 2018 is aiming to raise awareness of the illness as figures reveal eight in ten people do not know what it is.