The fifth wave of the epidemic broke out, and another new case was added in Wing Wah Court, Tsuen Wan Garden. The same as the previous confirmed case, also lived in Unit 5 on the upper floor, and vertical transmission was suspected.
The Chief Doctor of the Infectious Diseases Division of the Centre for Health Protection, Au Ka-wing, together with the Environmental Protection Department and the Buildings Department, visited the site today (25th).
Ou Jiarong said that the two patients lived on the 12th floor and the No. 5 roof on the roof respectively, and it was suspected that the virus of the patient on the 12th floor reached the roof through the fecal duct.
EPA said the general households should have the air hose at a distance, but I think someone's rooftop unit is a "retrofitting" their toilet and kitchen with gas jets are very close, "So many risky Zo."
Authorities decided to 4 The residents of Unit 5 on the 18th floor will be evacuated tonight. Since Unit 4 is located opposite, the Unit 4 on the 16th to 18th floors and the rooftop will also be evacuated.
There is one more patient in Wing Wah Court, Tsuen Wan Garden, who lives in Room 5 on the upper floor as the previous case (#13340).
(Photo by Yu Junliang)
The second case involved a decoration worker who went to work in a kindergarten
Ou Jiarong said that the two cases in Ronghua Court also lived in Room 5.
The first case was confirmed yesterday (#13340), which is a case of unknown origin.
The patient lives in Room 5 on the 12th floor. He has never been to high-risk places and developed symptoms on January 21.
The other case is a renovation worker (#13420) who was diagnosed today, and lives in Room 5 on the rooftop with the same orientation as the previous case.
He became ill one day late and developed symptoms on January 22, but his viral load was high and it is believed to be a new case of infection.
Ou Jiarong also pointed out that the patient (#13420) had been to Block 2 of Mingcheng Phase III, Block 5 of Haojingwan, and had also been to a kindergarten in Tai Wokou for decoration.
The gas hose should have been kept away from the unit, but the person involved lived in an unauthorized unit
Ou Jiarong said that after the inspection, the preliminary conclusion is that the patient (#13340) on the 12th floor, the sewage discharged from the unit entered the fecal canal, and the virus may reach the roof through the air pipe of the fecal canal.
Since the air hose is located outside the toilet and kitchen of Unit 5 (#13420) on the roof, the air with virus may infiltrate the house through the air hose and infect him. "The air hose is basically attached to the roof. , (the air pipe) is one meter away from the roof floor, but because there are units on the rooftop, the air pipe exit is near the unit on the rooftop.”
(Photo by Yu Junliang)
The EPD pointed out that the building has 18 floors, each floor has 6 units, and the 4th to 18th floors and the roof are inhabited.
Au Jiarong emphasized that the second patient (#13420) lives on the rooftop, not on the 18th floor.
When asked whether the rooftop unit was built without authorization, the department said it would follow up, but it was believed to be an additional unit.
He said that ordinary households should be separated from the gas pipe by a certain distance, but because the unit was built near the gas pipe, and the toilet and kitchen of the unit involved were close to the gas pipe, "there is a lot of risk."
A total of 16 households will be evacuated
Ou Jiarong said that the residents of Unit 5 of the building must be evacuated tonight.
In addition, since the case may involve airway transmission, the opposite unit is also at risk. Since Unit 4 is located opposite Unit 5, Unit 4 on the higher floor also needs to be evacuated, that is, a total of 16 households have to be evacuated, and the actual number of units still needs to be evacuated. count.
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