Donors aged 16 to 17 need to have parental consent at the first donation; Donors aged 66 or above who have completed any donation in the last 2 years, can be accepted for whole blood donation up to their 76th birthday.
Any persons who have spent cumulatively a total of 3 or more months in the UK from 1980 to 1996, or a total of 5 or more years in France or Ireland from 1980 to 2001 will be deferred from blood donation in Hong Kong. It is because these people might have been exposed to variant Creutzfeldt-Jacob disease ( vCJD ) or human equivalent of Mad Cow Disease due to their residence in those places during the said periods.
There is now evidence from a small number of case reports involving patients and laboratory animal studies that vCJD can be transmitted through transfusion. There is no test for vCJD in humans that could be used to screen blood donors and to protect the blood supply. This means that blood programmes must take special precautions to keep vCJD out of the blood supply by avoiding collections from those who have been where this disease is found.
According to Blood Donation Precautionary Measures in Response to COVID-19, member of public who has travelled outside Hong Kong recently for any destinations should be deferred from blood donation for 28 days from the date of arrival.