Long COVID: The CDC works to better understand the full picture

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Millions of people diagnosed with COVID-19 are still suffering from chronic symptoms.

The Centers for Disease Control and Prevention (CDC) has been working to compile a complete picture of the long-term COVID, a syndrome of conditions that persist after COVID-19, but it is still difficult to fully understand.

“The number of people previously infected with the SARS-CoV-2 virus that causes COVID-19 is increasing, with CO4 weeks after acute COVID-19 reporting the onset of persistent symptoms or long-term symptoms; these symptoms are commonly referred to as post-COVID conditions or prolonged COVID “, said the CDC in its recent Weekly Report on Illness and Mortality (MMWR).

The report added that survivors of COVID-19 were twice as likely to have a pulmonary clot, ie pulmonary embolism or other lung problems. Among COVID-19 survivors, one in five people between the ages of 18 and 64 and one in four people over the age of 65 have experienced at least one illness that could have been related to a previous COVID-19 infection.

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The agency organizes the symptoms of the condition into several categories, including what are common symptoms, such as fatigue, respiratory symptoms, such as breathing, chest pain, or rapid heartbeat, and neurological symptoms. “brain fog.”

“Some people with post-KOVID condition have symptoms that are not explained by tests,” the CDC said. “People with post-COVID status may experience health problems due to the different types and combinations of symptoms that occur at different times.”

All patients with COVID-19 may experience this condition, and a recent analysis of personal insurance claims showed that more than 75% of patients with COVID-19 were not hospitalized for their initial illness. Researchers reviewed data from the first four months after a special diagnostic code was developed last year.

Atlanta, Georgia, USA - August 28, 2011: Entrance sign of the Centers for Disease Control and Prevention.  The sign is located on the Emory University campus near the 1,700 block of Clifton Road in Atlanta, Georgia.  Vertical composition.

Atlanta, Georgia, USA – August 28, 2011: Entrance sign of the Centers for Disease Control and Prevention. The sign is located on the Emory University campus near the 1,700 block of Clifton Road in Atlanta, Georgia. Vertical composition.
(iStock)

Estimates vary from the proportion of long-term COVID-19 developers, but approximately 13% develop the syndrome one month after the first infection, 2.5% appear three months after self-report, and more than 30% of long-term hospitalizations occur. . Symptoms of COVID-19 at 6 months on CDC.

Some people are at greater risk for long-term COVID-19, including those with severe COVID-19 disease, those with chronic medical problems prior to COVID-19, those who have not been vaccinated against COVID-19, and those with health inequalities, such as some racial discrimination on the CDC. and ethnic minority groups and people with disabilities.

However, the UK Health Agency analyzed eight studies examining the effects of vaccines on long-term COVID and found that two out of eight had vague evidence that vaccination reduced the risk of long-term COVID.

Another study of 209 patients in the cell found that high levels of coronavirus in the blood at the onset of infection, as well as the presence of specific antibodies that accidentally attack our tissues called autoantibodies, increase the risk of long-term COVID.

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The study also found a virus that causes mononucleosis in most people during childhood, known as Epstein-Barr virus, which usually falls asleep after the initial infection, another potential risk factor that reactivates when people with long-term COVID become adults.

The exact cause of chronic COVID is unknown, but some studies suggest that an overactive immune response to an initial infection may lead to prolonged COVID symptoms, the doctor said. Michael Peluso is an infectious disease doctor at the University of California, San Francisco.

“We know that during acute COVID-19, some people’s immune responses actually increase, while some people’s immune responses decrease, and this response can determine how well someone is working,” he said.

Some studies have shown that approximately 60% of all long-term patients with COVID are women, which is consistent with other long-term conditions that have similar symptoms, such as chronic fatigue syndrome.

Recent studies suggest that the first 100 patients treated for neurological symptoms in a post-COVID-19 clinic had long-lasting COVID peaks in the Middle Ages.

There is no single test for a long-term diagnosis of COVID-19, but the CDC states that a healthcare provider should consider a diagnosis based on a patient’s history, including a diagnosis of COVID-19, in combination with a positive test or physical illness for symptoms or effects. exam

But some create new health problems after the initial illness, the agency said.

The sick young man was in bed, covered with a light gray blanket, surrounded by used tissues.

The sick young man was in bed, covered with a light gray blanket, surrounded by used tissues.

A recent Scottish study published in the journal Nature Medicine found that one in eight patients hospitalized with COVID-19 between May 2020 and March 2021 was later diagnosed with myocarditis or inflammation of the heart, and damage to other organs, such as the kidneys, was also common.

“COVID-19 is a multi-systemic disease and can be seen after an initial examination of injuries to the heart, lungs and kidneys, as our study showed. [hospitalization] In scans and blood tests, ”said Colin Berry, chief investigator of the study and professor of cardiology and imaging at the University of Glasgow.

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“The best way to prevent post-COVID conditions is to protect yourself and others from infection. Getting people vaccinated and aware of COVID-19 vaccines can help prevent COVID-19 infection and prevent serious illness,” the CDC said. .

If you have had COVID for a long time and you are eligible to participate in the RECOVER study of the National Institutes of Health, click here.

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