TEN new cases of HIV were reported in Hongkong last month - the second highest number of infections in one month since the Department of Health began testing for the AIDS virus nearly eight years ago. The cases included a haemophiliac, but the man was infected before August 1985, when screening of blood and blood products was introduced. Dr Lee Shui-shan, consultant physician for the Department's AIDS education and counselling service, said: ''He got his infection very early. ''It does not mean blood products are unclean and that he got his infection in the past one or two years.'' The man was one of 10 new HIV cases, two involving women, discovered in May. The cases confirmed the worrying trend of more heterosexual transmissions and more women being infected. The findings have prompted a revamp of AIDS education programmes aimed at women. Dr Lee said the chances of another HIV-infected haemophiliac being discovered were small because of publicity by the Government and haematologists about the HIV antibody test. He said the haemophiliac patient had been reluctant to undergo tests for the virus before now. The new patient brings the reported number of HIV-infected haemophiliacs in Hongkong to 62. Eight men and two women were found to be infected with HIV last month, bringing the total number of infections of 369 - of which 83 have developed full-blown AIDS and 53 have died. Two new AIDS cases - both women - were also diagnosed last month. Eight of the 10 HIV infections involved Chinese, while eight were through heterosexual contact and one involved homosexual or bisexual contact. ''The biggest worry to us is the heterosexual threat,'' Dr Lee said. He said he was also concerned by the increase in infections of women. More than half of the total number of 23 cases had been diagnosed within the last year - eight in 1992 and five in the first five months of 1993, he said. ''I am alarmed by the problem that is happening among women,'' he said, adding that most women had been infected through their male sex partners. The rising number of women infected meant Hongkong's first mother-to-baby transmission of the killer virus was probably only a couple of years away, he said. Dr Lee said Hongkong had to act now to prevent an epidemic among women and children. The Department of Health is planning a revamped education programme aimed at women, with new television adverts beginning in mid-July. It is rewriting its AIDS information material and despite a poor response from women's groups one year ago, is contacting them again for help. It is also looking at the possibility of introducing HIV tests in more women-friendly environments, such as the Family Planning Association. But Dr Lee said alerting women to the fact that they were at risk - even in a long-term relationship such as marriage - would not be easy. ''It is a relationship problem,'' he said.