A HONGKONG businessman was refused entry to China because he was carrying the AIDS virus, it was reported yesterday. The man arrived in Beijing this month, but was sent back to Hongkong when immigration officers at Capital Airport discovered he was HIV-positive, the Beijing Evening News said yesterday. The middle-aged man, named by one news agency as Mr Au, did not reveal he had the virus which leads to AIDS on his health declaration, but was refused entry after computerised records showed he was infected. It is understood the man tested positive in Guangdong in January when Chinese authorities were undertaking the highly-criticised routine blood sampling of frequent travellers. Last night, officials at the Beijing airport were unable to confirm the report or say if immigration officers had access to computer records of HIV-infected travellers. Testing of frequent visitors to China was abandoned this year after a storm of protest from Hongkong denounced the test as unreliable, ineffective, insensitive, inconvenient and potentially dangerous if penny-pinching border stations collected blood samples with used needles. The apparent continuing use of results from the tests is set to rekindle the row. Chinese nationals still have to take an AIDS test when they re-enter the country. It remains unclear if those test results are fed into a computer or if immigration officers can always check the health status of passengers. ''They just hand you a piece of paper and that is that,'' said one traveller just returned from the United States.