The fifth wave of the epidemic in Hong Kong is serious. Today (27th), there were 12 more cases of unknown origin, and the "pet shop group" is suspected to expand.
Choi Wan (1) Village Chief Bo Building added 18 preliminary positive cases today, and the building has recorded a total of 22 cases.
Yuen Kwok-yung, a government expert advisor and chair professor of the Department of Microbiology of the University of Hong Kong, said after inspecting the Changbo Building today that a 26-year-old man in Block E, Mansion Court, Wong Tai Sin, kept hamsters and later contracted the virus. His mother was working as a security guard in the Changbo Building, so There is reason to believe that this case caused the 22 cases in Changbolou.
The Centre for Health Protection said today that one of the confirmed cases in the Changbo Building was a security guard who worked at night.
As for the current approximately 30 cases of unknown origin, the Director-General of the Centre for Health Protection of the Department of Health, Xu Lejian, believes that if the investigation continues, links with other cases may be found.
"Because its source is unknown, we can't find any connection to its exposed history."
▼1.26 Caiyun Village Changbo Building Enclosure Inspection▼
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Xu Lejian, director of the Center for Health Protection of the Department of Health, announced that the Changbo Building, where the Omicron case was involved, temporarily has 16 units, involving 22 residents and 1 security guard. About 60 units have to be evacuated.
She pointed out that the authorities found 18 cases in the forced enclosure yesterday, and found that the units had "cluster" transmission, that is, some units were on the upper or lower floors, with cluster transmission.
In addition, there was also transmission on the rooftop and horizontal transmission on the 16th floor.
Xu also pointed out that, unlike Yat Kwai House in Kwai Chung Village, the structure of Changbo House may affect the air flow, resulting in vertical and horizontal transmission.
She believes that there is a risk of structural transmission, so residents of 62 units need to be evacuated, and other units are subject to test results.
Zhang Zhujun, director of the Infectious Diseases Division of the Center for Health Protection, revealed that one of the confirmed cases in the Changbo Building was a security guard who worked at night.
The confirmed security guard usually works on the ground floor, distributing garbage bags to the residents' gardens, and also needs to take the elevator to the top floor and walk up the stairs to inspect the building.
She pointed out that recently it was discovered that security guards and cleaners have more opportunities to come into contact with people due to the nature of their work, and called on the above-mentioned workers to be tested for the virus.
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▼1.26 Kwai Chung Village shopping malls and markets become a city without people▼
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In addition, there were 12 more cases of unknown origin today, and they were asked if there were limited tracing manpower.
Xu Lejian pointed out that the authorities currently have several departmental teams responsible for the relevant work, and will increase the number of locations and teams for tracking.
At present, about 30 cases are of unknown origin, but he believes that if the investigation continues, links with other cases may be found.
Xu also said, "Because the source of the channel is unknown, we can't connect all the exposed histories from it." He explained that if the patient has visited the restaurant, other patients have also visited, it will become a connecting factor. .
However, the current cases of unknown sources do not have such sources of exposure at all, including restaurants, work, schools and other places.
As for when will it connect?
Xu responded that whenever a new confirmed case occurs, if a high-risk workplace or exposure history can be found, the dozens of cases of unknown origin can be linked to old cases at any time.
But he explained, "I really can't find it. The tracking office asks for information every day and tries to connect it."
The hamster-infected male mother, Changbo Building in Haoyuan, worked as a security guard or became the source of the building's outbreak. At least 22 people in the Changbo Building in Caiyun Village were infected with the virus. Vertical and horizontal transmission was involved. Some units were evacuated from the closed area. Inspection | Yang's foot ban is extended by one day until Friday morning, and the area is closed for testing｜Changbo Building in Choi Wan Village and Blue Sky Coast in Tung Chung enclose a number of residents involved in mutated virus