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Long COVID symptoms ‘typically last up to six months’

Research shows more than half of people with COVID-19 will go on to experience long-term Long COVID symptoms

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More than half of the 236million people who have been diagnosed with COVID-19 worldwide since December 2019 will experience Long COVID symptoms up to six months after the initial virus, new research has revealed. 

During their illnesses, many patients with COVID-19 experience symptoms such as tiredness, difficulty breathing, chest pain, sore joints and loss of taste or smell.

But its impacts, both mentally and physically, can extend into a range of further debilitating issues which can last for months – which the research team at Penn State College of Medicine saying their study findings should leave governments, healthcare organisations and public health professionals in no doubt over the scale of COVID-19 survivors who will need care for a variety of psychological and physical symptoms.

Until recently, few studies have evaluated patients’ health after recovering from the Coronavirus. To better understand the short- and long-term health effects of the virus, the researchers examined worldwide studies involving unvaccinated patients who recovered from COVID-19.

According to the findings, adults, as well as children, can experience several adverse health issues for six months or longer after recovering from COVID-19.

The researchers conducted a systematic review of 57 reports that included data from 250,351 unvaccinated adults and children who were diagnosed with COVID-19 from December 2019 through to March 2021. 

The researchers analyzed patients’ health post-COVID during three intervals at one month (short-term), two to five months (intermediate-term) and six or more months (long-term).

According to the findings, survivors experienced an array of residual health issues associated with COVID-19. Generally, these complications affected a patient’s general wellbeing, mobility or organ systems. 

Overall, one in two survivors experienced long-term COVID manifestations and the rates remained largely constant from one month through to six or more months after their initial illness.

Issues with general wellbeing, mobility, neurological impacts and mental health disorders all featured heavily in the long-term symptoms. 

“These findings confirm what many health care workers and COVID-19 survivors have been claiming, namely, that adverse health effects from COVID-19 can linger,” said co-lead investigator Vernon Chinchilli, chair of the Department of Public Health Sciences. 

“Although previous studies have examined the prevalence of Long COVID symptoms among patients, this study examined a larger population, including people in high-, middle- and low-income countries, and examined many more symptoms. Therefore, we believe our findings are quite robust given the available data.”

“The burden of poor health in COVID-19 survivors is overwhelming,” said co-lead investigator Dr. Paddy Ssentongo, assistant professor at the Penn State Center for Neural Engineering. 

“Among these are the mental health disorders. One’s battle with COVID doesn’t end with recovery from the acute infection. Vaccination is our best ally to prevent getting sick from COVID-19 and to reduce the chance of Long COVID even in the presence of a breakthrough infection.”

The mechanisms by which COVID-19 causes lingering symptoms in survivors are not fully understood. These symptoms could result from immune-system overdrive triggered by the virus, lingering infection, reinfection or an increased production of autoantibodies. 

According to the researchers, early intervention will be critical for improving the quality of life for many COVID-19 survivors. They said that in the years ahead, healthcare providers will likely see an influx of patients with psychiatric and cognitive problems, such as depression, anxiety or post-traumatic stress disorder, who were otherwise healthy before their COVID-19 infection. 

Based on these findings, healthcare providers should plan and allocate resources accordingly in order to effectively monitor and treat these conditions, the team said. 

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