Tongan health authorities have discovered the possibility that a generation of measles vaccinations are not effective.
The Chief Executive of the Ministry of Health says there have been at least 177 suspected cases of measles in the country since the October outbreak.
Siale 'Akau'ola says of those cases, 43 had a two dose recorded history of vaccination, which is recommended for protection against the virus.
Dr 'Akau'ola told Koro Vaka'uta about the situation in Tonga.
Tonga's main hospital, Vaiola Photo: RNZI / Koro Vaka'uta
