Thread by Mathew Dyors (Hammer)

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1/ 🧵 Why does China have a "zero tolerance" policy for letting Sars-CoV-2 spread and infect people?

And how will it go on in China?

I enjoy the fact that we can get information from scientists from all around the globe.

Let us listen to what Wu Zunyou has to say.
2/ Wu Zunyou is the Chief Epidemiologist of the Chinese Center for Disease Control and Prevention.

He states that treating Sars2 as a “big flu” dilutes the pandemic and is highly detrimental to its prevention and control.
3/ In Jan 22, The Lancet published a paper by the Director of the Institute of Health Indicators and Assessment (IHME) in Washington. The paper predicts that the global epidemic of the Covid-19 virus is coming to an end and that March 22 will be a critical point in time.
4/ Wu states that the view in the paper are inaccurate. The author of the paper is a statistician, a top global expert in mathematics modelling, not a biologist or a virologist.
5/ The assumptions in the paper are based on Influenza. However, post-Influenza immunization usually lasts for up to one year, while for Sars-CoV-2 it is usually lasts about three to six months.
6/ Sars-CoV-2 is evolving very rapidly. The circulating Influenza strains evolve with a longer cycle, usually one year or a few years, and within that cycle, changes in the virus usually do not affect cross-immunity.
7/ Thus, the scientific basis for the view that “March 22" became a critical point regarding the end of the Covid-19 pandemic in terms of the characteristics of the mutational pattern and the two-year time frame is inadequate.
8/ It is now difficult to determine the extent of the future Covid-19 epidemic. It depends on the level of our scientific knowledge of Covid-19 and the level of human technology and capacity to control the epidemic.
9/ It is no longer possible to use an indicator such as vaccination rates to set a timetable for the end of the Covid-19 pandemic, as it is complex and there is no single way to keep Covid-19 under control.
10/ With a comprehensive approach, vaccines are undoubtedly the most important weapon against the Covid-19 virus, including Omicron.
11/ There are also strict public-health measures, good hygiene practices, timely medical intervention, a combination of central and western medicine, and a combination of preventive and curative applications to control the Covid-19 pandemic.
12/ “Dynamic Zero is the best way to control it so far” Indeed, China’s “dynamic zero” policy has caused China’s epidemic to be hundreds of times lower than the world’s average.
13/ Today, the number of people who lost their lives as a result of the Covid-19 epidemic is high. China did a lot better. The Chinese people should be very happy and feel secure.
14/ Although the outbreak of a local epidemic may have some impact on a few, from the point of view of a national chess game, no country in the world is as successful as China, and it should be said that the “dynamic zero” policy is the best way to control it so far.
15/ The "dynamic zero" strategy will not be adjusted for the time being if we do not find a new way to ensure that the virus is imported without widespread transmission and that there is no better way to contain the epidemic.

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16/ And the original source: world.huanqiu.com/article/46joLIzMwjh
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