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Written by: Wang Jieen
2020-07-12 10:39
Last update date: 2020-07-12 11:49The New Coronary Pneumonia epidemic has worsened. Zhang Zhujun, director of the Infectious Diseases Division of the Centre for Health Protection, described it yesterday. The situation seems to be the worst since the outbreak in Hong Kong. An expert in government anti-epidemic disease and dean of the University of Hong Kong Medical College, Leung Cheuk Wai, said today (11th) that the Hong Kong began a truly sustained local outbreak. Due to the genetic variation of the virus, the immediate spread rate of the virus in Hong Kong is now lower than that of Wuhan. Even before the closure of the city.
He also pointed out that at present, Kowloon East and Shatian belong to two higher-risk geographic groups, and the situation is worrying.
Dean Liang Zhuowei of the Medical College of HKU. (Profile picture / Photo by Yu Junliang)
A patient can infect up to three to four people
Liang Zhuowei said that the local spread rate of local cases of new coronavirus in Hong Kong has exceeded 3, or even nearly 4, representing that an infected person can transmit the virus to 3 to 4 people at most. "Representing the initial stage of the outbreak, there is no awareness, no There are any levels of control measures."
He said that at the end of January, before the city was closed in Wuhan, the immediate spread rate was only 2.5 to 3, but according to the latest research report, due to the genetic variation of the virus, the new virus spread rate is 30% higher, emphasizing that Hong Kong is now starting to really The local outbreak continued, even in March, most of the cases were imported cases, "have not been tried since January."
Liang Zhuowei pointed out that the spread rate (Rt) of the new coronavirus has increased significantly in recent days. (Provided by HKU)
High risk in East Kowloon and Sha Tin
Liang also pointed out that since July, as of yesterday, there have been more than 120 local cases, and it is estimated that at least 50 to 60 invisible cases remain undetected.
Liang said that with reference to the data, there are currently two high-risk geographic groups in Hong Kong, including East Kowloon and Sha Tin covering Ciyun Mountain, describing the epidemiological trends in the two regions as worrying. He said that the source of the disease in Shuiquan'ao Village, Shatian, is likely to come from the village of Liyuan, where the outbreak occurred earlier, and the chain of transmission may have not stopped.
He also pointed out that there were also canteen outbreaks in Tuen Mun in the past two days. According to his understanding, there are also preliminary confirmed cases on Hong Kong Island, all related to restaurants.
▼The third wave of outbreaks limits the tightening▼
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Hope to arrange home work again
When asked whether the book fair could still be held, Liang Zai reiterated that Hong Kong has never tried a large-scale local outbreak since January, but now it has begun, "I am really serious this time for the first time."
He also pointed out that regardless of the mandatory or spontaneous epidemic prevention measures, everyone must take a two-pronged approach, also saying that it is no longer urgent, emphasizing that the epidemic prevention measures will see results at least a week. He hopes that employers can arrange home work again. All large-scale activities should also be exempted, and be careful when visiting high-risk places such as restaurants and bars.
He said that in order to find the source, even if there are no symptoms, it should be tested to find the invisible transmission chain. In addition, if the elderly are infected, the probability of serious illness and death is more than a multiple, he suggested that in order to protect the highest risk groups, the elderly homes in East Kowloon can be tested first, and the practice will be relatively "stable."
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