Andrew Hosken's report was first broadcast on the Today Programme on Monday 31 December 2012.
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2.
Brazilian firm Carvalho Hosken Hotelaria owns the 298 room hotel in Rio, but Hilton is managing and branding it.
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3.
The BBC's Andrew Hosken said few people appreciated the central vetting role played by the DoH, believing it was mainly an issue between local trusts and individual staff members.
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