New Coronary Pneumonia | Xu Shuchang: Invisible patients account for 30% of the elderly and long-term patients must be tested

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Written by: Chen Jingqi

2020-07-15 08:49

The new coronary pneumonia epidemic rebounded, and there was a group infection in the medical ward of Queen Elizabeth Hospital. There were 10 patients in the same ward, and 3 of them were diagnosed successively. Xu Shuchang, a government expert consultant and a lecturer professor of the Department of Respiratory System at CUHK, said this morning (15th) that the group is a small outbreak, but the rest of the patients in the ward have been tested and there are specific patients in the ward. Hourly ventilation specifications, so "temporarily don't be surprised".

Xu suggested that the patients who enter the public hospital should be tested first. Because there are many invisible patients in the community recently, the ratio is as high as 30%. Therefore, it is believed that all elderly and chronically ill patients who enter the public hospital must keep test samples to reduce ward outbreaks. Risk of infection.

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Xu Shuchang continued that patients with new pneumonia have a longer incubation period and need to be strengthened. He explained that there are many hidden patients in the community recently, and 82 of the 244 cases are asymptomatic, accounting for 30% of the cases, and the source of the virus cannot be found. In addition, the elderly may not have symptoms immediately, so they think that the elderly and chronically ill patients are admitted to the hospital Should be tested before.

For example, Xu Shuchang pointed out that if a patient in a surgical ward needs to undergo surgery, the previous day must be tested and the virus will be negatively reacted before the operation will be performed. Therefore, he believes that elderly and chronically ill patients who enter public hospitals for any reason must keep samples .

I was asked whether there would be an empty window period in the relevant situation. Even after leaving the sample, the patient may still have the opportunity to spread it to others. Xu Shuchang said that the hospital environment is relatively safe. Due to the epidemic situation, some non-emergency services are suspended, the ward has a certain space, it will not be too crowded, and the ventilation facilities are perfect. Therefore, he believes that the above patients leave samples and take adequate protective measures to wear masks at all times. The chance of an outbreak in the ward should not be too high.

As for a number of cases in recent markets, Xu Shuchang pointed out that most markets are equipped with air-conditioning indoors, the air is not well circulated, and there are many objects in common contact. There is a certain risk of spread. The market must improve the ventilation system and the public must wear it Masks and diligent attention to disinfection and cleaning.

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