Recent theorising on the nature of racism suggests that over the last few decades it has come to be expressed in more subtle and ambiguous ways because while many Whites proclaim egalitarian values, their cognitions and behaviour are in¯uenced by prejudices that are buried deep in their psyche. This leads to the possibility that those who perpetrate and those who experience racism may have different interpretations of events that involve racism. Essed (1991) has suggested that because they are exposed to racism systematically, those who experience racism are in a good position to detect it if they have both knowledge of normal behaviour for particular situations, and a general knowledge of racism. Using Essed's model of the assessment of racist events, the descriptions of six videotaped ambiguously racist scenarios given by 40 Caucasian students and 40 Asian students were analysed to determine whether situational or general knowledge of racism was evident. Contrary to expectations, the Asian students, who belong to a group targeted with racism in Australia, were less likely to see racism in the scenarios. Finding the scenarios to be acceptable indicated a lack of situational knowledge and, hence, an inability to use general knowledge of racism if it exists. The role of cultural values in the application of situational knowledge is discussed, and further empirical investigations of Essed's model are proposed.

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Despite recent rises in the number of cases of sexually transmitted infections (STIs) such as syphilis and gonorrhoea in England and increasing rates of HIV diagnosis among several men who have sex with men populations, many individuals are still not engaging with sexual health services. The John Hunter Clinic for Sexual Health, Chelsea and Westminster Hospital, London set up outreach clinics at the two world's largest adult lifestyle exhibitions in 2013 and 2015. This was the first time that a sexual health screening and promotion service was available at these large-scale (over 10,000 attendees at each) adult lifestyle events. A total of 381 individuals underwent STI screening across the two events. Nineteen (5.0%) patients were diagnosed with an infection. Twelve (3.1%) patients with Chlamydia trachomatis, three (0.8%) patients with syphilis, one (0.3%) patient with Neisseria gonorrhoeae, one (0.3%) patient with HIV, one (0.3%) patient with hepatitis B and one (0.3%) patient with hepatitis C. All 19 patients were promptly contacted with their results and had arrangements made for treatment or were referred for specialist follow up. Where possible, contact tracing was also performed. Implementing such outreach-based projects is challenged by lack of on-site laboratory support, high staffing demands and potentially high costs. However, we achieved a total HIV screening uptake rate of 94.5% amongst our outreach clinic attendees (versus 67% nationally in conventional sexual health clinic attendees) with an HIV positivity rate of 0.3% (versus 0.2% nationally in high HIV prevalence band populations). Additionally, 30.7% had never been tested for HIV previously (versus 20.7% nationally). Our work demonstrates that these strategies can help to address issues related to lack of STI/HIV screening in hard-to-reach populations and promote risk reduction behaviour.

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