According to a new study from the Centers for Disease Control, one in five Covid-19 survivors may develop symptoms of long Covid, or long-term symptoms, though vaccinations may cut the risk of symptoms by 15%.

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A positive test result for Covid-19 is shown.

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Vaccines reduced the risk of death among Covid patients by 34%, and decreased the risk of lung and blood-clotting disorders by 50%, according to a Washington University study.

According to the study, unvaccinated people are more likely to develop long Covid symptoms than healthy people.

The results suggest that vaccinations are important in the fight against Covid, but seem to only offer modest protection against long Covid, Ziyad Al-Aly.

The CDC published new research on Tuesday showing Covid survivors are more likely to develop respiratory issues than those who haven't had Covid.

As many as one out of every four older adults experienced long Covid symptoms, and were more at risk than younger people, according to a study by the CDC.

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The University of Washington School of Medicine found that patients who were hospitalized with breakthrough Covid infections were more likely to die than those who were hospitalized with the flu. Within 30 days of being diagnosed with Covid, they were 27% more likely to develop long- lasting symptoms.

Key Background

Long covid is used to describe a host of symptoms people report for months or even years after an initial coronaviruses infection. There is growing evidence that a record number of adults may experience lasting effects from mild Covid infections. There are a wide array of Covid-related health issues identified by researchers. A new study published in the British Medical Journal found that one dose of a Covid vaccine could cut the risk of long Covid symptoms by 13%. The authors of the CDC study, who are also members of the CDC's Covid-19 Emergency Response Team, concluded that there are no treatments for long Covid.

What We Don’t Know

The causes of Covid. While researchers have found that coronaviruses can cause more serious symptoms, they have yet to discover the exact mechanisms that cause some people to experience health issues for months and even years after the infections.

A C.D.C. study suggests that more than 1 in 5 adult Covid survivors may develop long Covid. The New York Times.

A study found that getting vaccinated after an illness could reduce the risk of long covid.