having watched 'selling sex in heaven' about the Philippine sex trade on the cbc channel.
some places check bar girls regularly, using smear tests but are rarely tested for HIV.
most shocking is the final option for some girls are the 'casas' used by the local Filipino men, where the girls are locked in a small room, a guard stands outside and lets in customers every 15 mins.
i think the girl will not like being asked to go to a clinic to test her, so maybe your friend can buy HIV and other testing kits online, and take them to the phils where both of them can be testedif you don't want to go to a clinic...