There is a big outbreak in Hong Kong. There are 109 confirmed cases today, and two patients were confirmed after donating blood. One of them had platelet transfusions to a patient in Eastern District Hospital.
Respiratory specialist Liang Zichao pointed out that the chance of transmission through blood is low, and there has been no transmission caused by blood transfusion in the world for the time being, and the virus content in blood is low, and the virus will enter the blood after a period of time after the onset of the disease. Strengthen screening measures.
A similar accident happened in July last year
Hospital Authority Chief Administrative Manager (Patient Safety and Risk Management) Ho Wan-xia pointed out at the press conference on the epidemic that she had received a notification from the Hong Kong Red Cross Blood Transfusion Service Centre that two confirmed patients had donated blood earlier, and one of them had donated blood in Tsuen Wan on January 16. of patients whose blood has been made into platelets was given to an Eastern District Hospital patient on January 19.
Looking through the information, in July 2020, there was also a confirmed case of blood donors in Hong Kong, and the donated red blood cells had been transfused to another patient, and the situation of infection was not announced later.
Liang Zichao: The new coronavirus mainly invades respiratory cells
Liang Zichao pointed out that similar situations have been reported in other places in the past, but no transmission has been reported.
He explained that at present, the new coronavirus mainly invades respiratory cells, multiplies in the respiratory tract, and gradually spreads to other blood vessels. It will not invade other cells and enter the blood until the disease deteriorates. It will not enter the blood in the early stage, so the virus appears in the blood. There will be jet lag and virus levels will be low.
As for whether the blood donation center needs to strengthen blood screening, Liang Zichao pointed out that the virus in the blood is low, and it may not be able to detect it. He believes that the current procedures of the blood donation center are sufficient.
When asked if it is necessary to close blood donation centers in areas with severe epidemics, Liang Zichao pointed out that the current blood stock is low, and he believes that unless there is an obvious outbreak, it is enough to ask people with mild symptoms to stop donating blood.
Zeng Qiyin, co-chairman of the Advisory Committee on Infectious Diseases of the Medical Association, also pointed out that he has never heard of the transmission of the new coronavirus through blood in the literature.
Referring to the blood donation measures of the Red Cross Blood Transfusion Service Center, currently returnees from other places and close contacts of confirmed patients need to suspend blood donation for 28 days, and patients who have been diagnosed with new coronary pneumonia can donate blood only after 180 days of recovery. If you have a fever, respiratory infection or pneumonia after donating blood, you should notify the center.
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