[New Coronary Pneumonia] Doctors who have unknown sources and returnees should strictly enforce the restriction order

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Written by: Chen Qianting

2020-03-30 14:48

As of yesterday (30th), the number of confirmed cases of new pneumonia in Hong Kong has increased to 642 (including 641 confirmed cases and 1 suspected case). Most of them have traveled abroad, and some of them were enforced in Hong Kong by immigrants.14 Return to Hong Kong from overseas before the Japanese quarantine. At the same time as the number of imported cases has increased, more local cases of unknown origin have begun to appear in Hong Kong. At least 6 cases yesterday (29th) have unknown origins, but patients have participated in meetings.

The Chairman of the Medical Association's Advisory Committee on Infectious Diseases, Liang Zichao, pointed out that the new wave of outbreaks was related to some 70,000 people who had rushed back to Hong Kong. For example, some overseas students were suspected of infecting their families after returning to Hong Kong. Grasp the current 14-day limit-to-gathering order, and use decisive measures to cooperate with law enforcement to cut off the transmission chain, so as not to cause a chain outbreak.

(He Bailiang's blog picture)

Since March 17, the Hong Kong government has required people who arrived in Hong Kong from the Shengen region in Europe to undergo compulsory quarantine on the 14th, to expand to overseas regions on March 19, and to expand to include Taiwan and Macau immigrants on the 25th, non-Hong Kong residents. No entry allowed. This group of immigrants need to wear hand straps to check in with the app regularly to ensure that the relevant persons remain in the quarantine premises. However, some overseas people have already returned to Hong Kong in advance and do not need to undergo compulsory quarantine.

He Bailiang, director of the Center for Infection and Infectious Diseases of the University of Hong Kong, described in a blog that seven days (March 11-18) before the entry into force of the compulsory quarantine requirement was an "empty window period", and 519 cases were confirmed in Hong Kong as of March 27 Among the cases, 173 were those who entered the airport during the empty window period, and only 22 of them were classified as requiring 14 days of quarantine or referred by the Port Health Division upon entry.

The Chairman of the Infectious Diseases Advisory Committee of the Hong Kong Medical Association, Leung Chi-chao reminded the public not to worry too much. (Profile picture / Photo by Tan Weiquan)

Second wave of transmission of family members after overseas students return to Hong Kong

The Chairman of the Infectious Diseases Advisory Committee of the Medical Association, Liang Zichao, pointed out that some returnees from overseas "Chongguan" did not take necessary precautionary measures after returning to Hong Kong, including not being isolated at home, and going to different places such as bars for entertainment and parties. The bar's customers are more mobile, so it will cause chain outbreaks in different groups.

Recently, there have been several sporadic cases of community infections of unknown origin. Liang Zichao is also estimated to be related to overseas returnees. This is due to the lack of detection in overseas countries before mid-March. The numbers do not reflect the severity of the epidemic, but European and American countries have actually " Explosive to colorful ", international students or travellers may be infected in the local area.

He mentioned three cases confirmed yesterday. One of them was a student studying in the UK. After returning to Hong Kong, he lived with his family. The father took the lead in confirming the diagnosis. Thereafter, the student, mother and younger sister were also confirmed. Liang believes that this case may have been transmitted to families by foreign students at home. This is the second wave of transmission. The Hong Kong Government must cut the chain of transmission with more decisive and stern measures as soon as possible.

Non-essential entertainment venues that are not closed due to a restriction order are not harsh

At present, the Hong Kong Government restricts the gathering of public places to no more than 4 people, and also requires the seating and occupancy rates of restaurants to comply with the relevant regulations. Liang Zichao believes that the entertainment facilities such as Ka La OK and Sparrow House have not been closed. The practice is not strict enough. If you do not grasp the 14th decree and use decisive measures to cooperate with law enforcement, the end result will only be to continuously extend the restriction order, and you will not be able to completely cut off the community communication chain. He asked, "How many 14th days can be wasted?"

He went on to point out that the government's appeal to the public not to go out is not enough. It is more important to cooperate with other measures so that the public does not need to go out again. Materials, etc., can effectively achieve the purpose of reducing aggregation.

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Coronavirus disease