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Study finds 80 per cent of recovered Covid-19 patients in Hong Kong suffer from at least one lingering symptom, with gut bacteria playing critical role

  • Researchers at Chinese University also say nearly a third suffer from more than three symptoms
  • Imbalances in gut bacteria have been linked to the severity of the disease, which is a cause for concern as 40 per cent of the population suffers from the condition

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Professor Ng Siew Chien, associate director of Chinese University’s Centre for Gut Microbiota Research. Photo: Handout
Eighty per cent of recovered Covid-19 patients in Hong Kong continue to experience at least one of the disease’s symptoms six months later and nearly a third report suffering from more than three, researchers have found.
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The study by a Chinese University team examined the role that imbalances in gut bacteria – or dysbiosis – played in recovery. They had earlier determined the seriousness of the illness correlated with how well or poorly the bacteria was balanced. Given 40 per cent of the local population suffered from dysbiosis, residents were susceptible to contracting severe bouts of Covid-19 and experiencing long-term symptoms even after recovery, it said.

The most common lingering symptoms were fatigue, poor memory, difficulty in sleeping, shortness of breath and hair loss.

Based on the findings, the researchers called for greater attention on combating dysbiosis as part of the longer-term treatment for people getting over the disease.

(From left) Professor Ng Siew Chien, Professor Francis Chan and assistant Professor Joyce Mak, of the university’s division of gastroenterology and hepatology. Photo: Handout
(From left) Professor Ng Siew Chien, Professor Francis Chan and assistant Professor Joyce Mak, of the university’s division of gastroenterology and hepatology. Photo: Handout
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“Our new findings of persistent dysbiosis in recovered Covid-19 patients highlight that gut microbiota imbalance with impaired immunity could play a role in ‘long Covid’,” said Professor Francis Chan Ka Leung, one of the authors of the study and a director of the university’s Centre for Gut Microbiota Research

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