Chief Executive Carrie Lam Cheng Yuet-ngor said today (14th) that he plans to expand the third dose of vaccination in January next year. By then, all citizens who have completed two doses of Fubitai vaccine and have a period of time apart can get the third dose.
Experts now suggest that the second and third needles should be separated by 6 months. Earlier, Xu Shuchang, chair professor of the Department of Respiratory System at CUHK, said that he planned to discuss shortening the distance between the two needles in the Science Committee.
However, Liu Yulong, chairman of one of the scientific committees, stated to "Hong Kong 01" that he opposes shortening the interval between the second and third shots, because the epidemic in Hong Kong is not as serious as that in other countries, so there is no need to rush the third shot. He thinks that the interval of 6 months is appropriate time.
In addition, because young people in Hong Kong are at a high risk of developing myocarditis after vaccination with Fubitai vaccine, they only need one dose of Fubitai vaccine. Regarding the question of whether they also need booster, Liu Yulong believes that they can be treated after the first injection. The second injection is given in three to six months, and the third injection is not necessary at this stage.
Xu Shuchang believes that if a second injection of Fubitai is given to adolescents, a low-dose Fubitai can be chosen.
(Photo/Photo by Ou Jiale)
Xu Shuchang said a few days ago that the second and third shots of the original vaccination could be 6 months apart, but the emergence of the strain Omicron has compromised the efficacy of the new crown vaccine, or the interval between the two shots needs to be shortened.
In reply to the inquiry of "Hong Kong 01" today, he pointed out that how much time should be shortened will be decided after the scientific committee meets on the 23rd.
However, Liu Yulong, chairman of the Scientific Committee on Vaccine-Preventable Diseases, said that he opposed shortening the interval between the second and third shots. He believed that six months was an appropriate time. He pointed out that the epidemic situation in foreign countries is severe and it needs to be shortened. However, the situation in Hong Kong is completely The difference is that there is currently no large-scale customs clearance, and the public does not need to rush the third shot.
He emphasized that the most important thing in Hong Kong is to give the elderly and children the first and second shots to reduce the risk of severe illness and death, rather than speeding up the third shot. "It is like the rich people discuss eating the third meal, but The poor have yet to eat their first meal."
Liu Yulong believes that only three to six months after the first shot of adolescents do the second shot of Fubital, which can reduce the risk of myocarditis.
(Photo/Photo by Ou Jiale)
On the other hand, young people in Hong Kong are at a high risk of developing myocarditis after vaccination with Fubitai. Currently, only one dose of Fubitai vaccine is required. Liu Yulong said that although there are still individual cases of myocarditis after a single injection in recent days, it is generally The risk has been reduced by 90%.
He pointed out that according to foreign vaccination situations, adolescents have a long time between the first and second injections, and the incidence of myocarditis is relatively low. However, due to non-research data, they are only obtained from real-world injections. It is difficult to determine how long the difference between the two needles will be better.
He believes that if these young people receive the second injection of Fubitai three to six months after the first injection, the risk of myocarditis can be reduced, or they can switch to Koxing vaccine.
As for the young people who have received two injections of Fubitai earlier, there is no need for a third injection at this time.
Xu Shuchang believes that if the second dose of Fubital is given to adolescents, low-dose Fubital can be selected, which is believed to reduce the risk of myocarditis.
When a pharmaceutical company was conducting a study on the vaccination for children aged 5 to 11 years, the dose used was one-third of the adult dose. When asked whether Hong Kong needs to lower the vaccination age before introducing this low-dose vaccine, Xu Shuchang The most important thing is that Fosun Pharma first finds a production line that specializes in producing low-dose vaccines and submits an application to the Hong Kong government. I believe that low-dose vaccines can be introduced to Hong Kong by then.
He also pointed out that switching to the thigh vaccination for adolescents may also reduce the risk of myocarditis.
▼The launch of the Hong Kong Health Code prepares for customs clearance▼
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For those who have received two injections of Fubitai, which vaccine should be given for the third injection, Liu Yulong believes that the public can choose by themselves. If someone has serious side effects after the two injections, they can change to the Kexing vaccine.
However, Xu Shuchang believes that foreign studies have reported that the use of Fubitai as a booster has higher antibody levels, and there is currently no benefit from switching to Coxing, unless there was severe allergies within an hour during the two injections of Fubitai. Reactions, such as "suffocating breath", otherwise the Bitex vaccine can be given again, including those who have had a rash after the injection.
Omicron｜He Boliang advocates to develop a schedule for the third dose of the British district A as soon as possible to promote the third dose of vaccination｜Lam Cheng: The expansion of the third dose of Fubitai in early January is not limited to the high-risk group of new coronary pneumonia.
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