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A video of three gay teenagers criticising the Thai Red Cross’s refusal of their blood donations has gone viral, highlighting the organisation’s international policy not to accept blood donations from homosexuals because, they say, of a higher risk of HIV contamination. The Thai Red Cross admits that 20 per cent of total blood donations have a chance of carrying an infection, leading members of the public to ask whether the Red Cross should screen donors based on risk activities rather than sexual orientation. Video by Chumporn Sangvilert and Nattawat Watanasuwan.