The Secretariat of the Pacific Community says the region still needs to do more to change people's attitudes towards HIV Aids.
The SPC's Tim Sladden says its collaborative survey with the WHO has shown a rise in the number of sexually transmitted infections in six Pacific countries.
He says the survey showed that people are undertaking risky sexual behaviour in countries that have low HIV prevalence rates or no cases, with the exception of PNG.
Mr Sladden says it's a wake-up call for more to be done to encourage prevention.
"That's very important that we reduce the fear factor if you like and make sure that people treat HIV like any other disease that people can get and we reduce the discrimination you see in some cases."
Mr Sladden says their survey was conducted in Fiji, Kiribati, Samoa, Solomon Islands, Tonga and Vanuatu.