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A study published on Saturday showed that more than three-quarters of participants hospitalized with “Covid-19” still had at least one symptom after six months.
Scientists said the study showed the need for further investigation into the ongoing effects of the coronavirus.
The study, which was published in the Lancet medical journal, and in which hundreds of patients participated in the Chinese city of Wuhan, is among the few studies that have followed long-term symptoms of the “Covid infection. -19 “.
He found that fatigue or muscle weakness were the most common symptoms, while patients also reported difficulty sleeping.
“Since Covid-19 is a new disease, we are only beginning to understand some of its long-term effects on patient health,” said lead researcher Ben Kao of the National Center for Respiratory Medicine.
The professor said the study highlighted the need for continued care for patients after discharge from hospital, especially those who have had a serious infection.
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“Our work also highlights the importance of conducting longer follow-up studies on more people, in order to understand the full range of effects that ‘Covid-19’ can have on people,” he added.
The World Health Organization has said the virus poses a risk to some people because of its dangerous and long-lasting effects – even in young people and healthy people who have not been hospitalized.
The new study included 1,733 patients with the “Covid-19” virus, who were released from Jinyintan Hospital in Wuhan between January and May of last year.
The patients, on average 57 years old, were visited between June and September and answered questions about their symptoms and health-related quality of life. Researchers also performed physical exams and lab tests.
The study found that 76% of patients who participated in the follow-up (1,265 out of 1,555) reported still experiencing symptoms.
Fatigue or muscle weakness was reported by 63%, while 26% had trouble sleeping.
The study also included 94 patients whose blood antibody levels were at their peak, in another trial.
When these patients were retested after six months, their neutralizing antibody levels were 52.5% lower.
Preparers said this raises concerns about the possibility of a return of the “Covid-19” infection, although they said larger samples are needed to show how immunity to the virus is changing in the over time.
In an article also published in The Lancet, Monica Courtenovis, Norberto Brico and Giuseppe Remuzzi of the Mario Negri Institute of the Regional Office for Cancer Research in Italy said there was uncertainty about the long-term consequences of the epidemic on health.
Unfortunately, there are few reports on the clinical picture of the effects of ‘Covid-19’, they said, adding that the latest study was therefore ‘relevant and timely’.
They also said that long-term, multidisciplinary research conducted in the United States and Britain will help improve understanding and develop treatments “to mitigate the long-term consequences of ‘Covid-19’ on several organs and tissues. .
Source: ScienceAlert
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