Recently, many imported cases in Hong Kong have been vaccinated, but they are still infected with the new crown virus. Yuan Guoyong, a government expert consultant and chair professor of the Department of Microbiology of the University of Hong Kong, told "Hong Kong 01" today (31st) that the Delta variant virus is not only powerful in spreading. , It can also promote a higher amount of virus in the patient's body. In some asymptomatic patients who have completed vaccination and even have high antibody levels, they can still detect infectious live viruses.
This result reflects that even if the vaccinators themselves are protected by the vaccine and become asymptomatic or mildly symptomatic, they still have the ability to infect others, and that these people may cause invisible transmission.
Yuan Guoyong emphasized that everyone should get the new crown vaccine as soon as possible, and only if more than 90% of people have completed the vaccination, the epidemic is expected to end.
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Yuan Guoyong told "Hong Kong 01" that the global epidemic is currently affected by the Delta variant virus. In some countries, even if the vaccination rate has reached 70%, the epidemic has rebounded. The Hong Kong government should learn from the experience of other countries and prepare as soon as possible.
He pointed out that the reason why the Delta variant virus is dangerous is not only because of its high transmission power, but also because it can infect the upper respiratory mucosa of humans, that is, the nasopharynx and throat, which makes the amount of virus in patients higher than the original virus, Alpha. Variant viruses and Beta variant viruses, even if they have been vaccinated, are not immune.
Yuan Guoyong emphasized that everyone should get the new crown vaccine as soon as possible, and only if more than 90% of people have completed the vaccination, the epidemic is expected to end.
(Profile picture / Photo by Luo Junhao)
He revealed that in some imported cases with no symptoms, some young and middle-aged patients have been vaccinated and have detected high antibody levels, but they still have infected live viruses.
This finding reflects that even if the vaccinators themselves are protected by the vaccine and become asymptomatic or mild, they still have the ability to infect others. Yuan Guoyong said bluntly that these people may cause invisible transmission to people who have not been vaccinated.
He said frankly that although the BioNTech vaccine can reduce infectivity, the effect of dealing with the Delta variant virus is not as ideal as expected.
Those who have completed the vaccination should not be too relaxed in their daily life and social activities.
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Yuan Guoyong believes that everyone should get the new crown vaccine as soon as possible, because sooner or later they will have the chance to be infected, and only if more than 90% of people have completed the vaccination, the epidemic is expected to end.
He said that the mask order and social distancing measures are only transitional policies. Only when most people in the society are vaccinated can they relax the restrictions and rebuild a normal society.
In some asymptomatic patients who have completed vaccination and even have high antibody levels, infectious live viruses can still be tested.
(Profile picture)
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