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Written by: Lin Yingxian Lin Jian
2021-06-10 11:34
Last update date: 2021-06-10 11:34
The two scientific committees under the Centre for Health Protection recommended last night (9th) that non-high-risk arrivals who complete vaccination in the future can shorten the quarantine period. Xu Shuchang, chairman of the Scientific Committee on New Discoveries and Animal Infectious Diseases, was in Hong Kong and Taiwan this morning (10th) The program stated that most people had good antibody levels 14 days after receiving the approved vaccine, and they had to be tested every two or three days, thinking that the risk of virus transmission was not high.
Xu Shuchang continued that there are currently no data on vaccination under 12 years of age, and it is too early to talk about further relaxing the age threshold for injections, and the committee has not studied reducing the vaccination age of Kexing.
Xu Shuchang pointed out that people who have been vaccinated with kidney transplants and are taking anti-rejection drugs may fail to produce antibodies in time, and their quarantine period has not been shortened.
(Information Picture/Photographed by Li Zetong)
Having been vaccinated with a kidney transplant and taking anti-rejection drugs cannot shorten the quarantine period
Xu Shuchang said in the morning on the Hong Kong and Taiwan program "Millenniums" that if passengers who have completed the vaccination test positive for antibodies and negative for nucleic acid after arriving in Hong Kong, the quarantine period can be shortened. He believes that most people Antibodies can be produced 14 days after the two injections, and the level is not bad. However, people who have been vaccinated with kidney transplantation or are taking anti-rejection drugs or fail to produce antibodies in time, the quarantine period has not been shortened.
He continued that when passengers are tested at the airport, blood will be drawn for antibody testing. The results are expected to be available in about half an hour. The HA is also comparing different "finger" antibody tests, which will be introduced in the future to speed up the testing. .
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When asked about the possibility of infection after injection, whether the relaxation of quarantine practices will cause epidemic prevention loopholes, Xu Shuchang said that the relevant recommendations are only applicable to non-high-risk areas. After the 7-day quarantine is completed, passengers will still be subject to 7-day self-monitoring. I have to be tested again every two to three days, thinking that the risk of letting the virus enter the community is not high.
The approved vaccines include the Russian "Satellite V", which is not available in Hong Kong. Xu Shuchang said that there are long-standing documents showing that the vaccine has a high protection rate.
The committee also announced last night that passengers who had received one dose of the vaccine would receive a second dose of Fubital. Xu Shuchang said that many Hong Kong people received a dose of Oxford/AstraZeneca vaccine while they were staying in the UK, although Hong Kong did not provide the relevant vaccine. However, there are literatures that show that "groove needle" has a higher protection rate, but short-term side effects will increase by 20%. He estimated that it is because the two vaccines stimulate S protein by different mechanisms.
Citizens who have received a dose of Modena vaccine in the United States can also be vaccinated after arriving in Hong Kong, which also uses the mRNA platform to generate antibodies.
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There is no data for vaccination under 12 years old, and it is too early to further lower the threshold for injections
As for Kexing and Fubitaigouzhen, Xu Shuchang said that the team of the University of Hong Kong and the Philippines have studied this separately, but there is no data showing that it is effective for the time being.
The committee also suggested yesterday that children over 12 years of age should be given injections as soon as possible. Liu Yulong, chairman of the Scientific Committee on Vaccine Preventable Diseases, even pointed out that the rate of side effects of vaccines among middle school students is lower than that in Western countries. Xu Shuchang said that the data is from Liu Yulong’s research and he does not understand However, Fubitel has relevant data for people aged 12 to 15, and the protection rate for young people is 100%. The main side effects are needle and mouth pain. It is believed that young people can also be vaccinated.
As for children under the age of 12, Xu Shuchang pointed out that there is no relevant data yet, so it is too early to talk about further reducing the vaccination threshold to under 12 years of age. As for whether Kexing Vaccine has a chance to extend to people under 18 years of age, he points to the current 3 to 17 years old. People’s test has more than 500 data, which is still not too much. After enough data is available, it will be submitted to the Department of Health, and then experts will meet again to make a decision.
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People with "three highs" should be vaccinated
Xu Shuchang also stated on the commercial channel program that the elderly who are suitable for seasonal influenza vaccine are suitable for the new crown vaccine in principle. At present, hundreds of millions of doses of inactivated new crown vaccine have been administered worldwide, and the data is sufficient.
He pointed out that the biggest problem in Hong Kong is that some people, including front-line family doctors, have a misconception that people with the "three highs" should not be vaccinated, but in fact people with the "three highs" should be vaccinated. If the condition can be controlled with drugs, the blood pressure can be kept stable, and vaccination will be absolutely no problem.
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