Regular donor Mr Chiu (left) was 'very shocked' when Red Cross doctor Lee Cheuk-kwong gave him the news. Photo: Felix Wong

Blood donors told they have rare bug

Nine people find out they carry bacteria closely linked with polyps that can turn cancerous

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Regular donor Mr Chiu (left) was 'very shocked' when Red Cross doctor Lee Cheuk-kwong gave him the news. Photo: Felix Wong
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