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Written by: Kuang Xiaobin and Zhang Jiamin
2020-08-18 08:54
Last update date: 2020-08-18 09:03The Centre for Health Protection announced yesterday (18th) that a 33-year-old man who had been diagnosed at the end of March and was engaged in IT in Hong Kong, recovered in mid-April, traveled to Spain via London this month, and then returned to Hong Kong for testing before being tested again. If the result is positive, the authorities need to conduct tests and genetic sequencing analysis.
Liang Zichao, chairman of the Infectious Disease Advisory Committee of the Medical Association, estimated in an interview with Metro Radio this morning (18th) that the above-mentioned "Fuyang" situation is a small number of cases. He believes that it will not have much impact on the overall epidemic prevention and control, but it may affect the vaccine. Research and development and its effectiveness.
The authorities announced at the epidemic press conference that a survivor had returned to Hong Kong and tested positive for the virus. (Photo by Lu Yiming)
Liang Zichao said on the program that there are multiple-source outbreaks in Hong Kong. Although the overall number of confirmed diagnoses is on a downward trend, the epidemic is still unstable. He believes that container terminal employees and cargo ship crews need a lot of testing and cooperation to cut off the group's transmission.
Liang Zichao pointed out that "fire prevention and fire fighting are two things." Most cases in Hong Kong are diagnosed only 7 days after the onset of the disease. As the detection capacity increases, related problems should be improved to reduce transmission. As for the "National Testing" program, Leung believes that the relevant procedures should be simplified as much as possible so that the public is willing and able to do it as soon as possible.
Kong Fanyi, director of the Department of Infectious Diseases of the Department of Internal Medicine of the University of Hong Kong, said in an interview yesterday that the "fuyang" patient may have a secondary infection. Will fall in a few months.
Liang Zichao. (Photo/Photo by Lin Ruoqin)
"Fuyang" cases generally have low transmission power
In addition, Liang Zichao, a respiratory specialist, said on the Hong Kong and Taiwan program "Millennium" that "Fuyang" cases are generally low in transmission, and they are rare, and have little impact on the epidemic. If the relevant case is a re-infection, or a variant of the virus, it will affect the development of vaccines in the long run. He also said that antibodies to respiratory diseases generally may not be able to maintain high levels, and re-infection will occur even if antibodies are present.
As for the government's announcement to extend the ban on eating at night and the restriction on gatherings for another seven days, Liang Zichao said that due to the container terminal and foreign domestic helper groups, there may be second and third generations of transmission in the community. And dine-in is prone to close contact without wearing a mask and poor air circulation, and it takes up to 7 days from the onset to diagnosis. If dine-in is relaxed, another rebound may occur. He said that if the relaxation of dine-in food is still salt water for the industry, he said that "long-term pain is worse than short-term pain." He also said that in the past, there were loopholes in the source input, and the virus entered high-risk groups, including taxi drivers, container port import, etc., and community fire fighting needs to be strengthened.
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