A new study published on Wednesday in the Official Gazette showed that vaccination after infection with the Corona virus may reduce the risk of developing the long-term Covid disease. British Medical Journala potential glimmer of hope for developing future treatments for the millions of people who still have symptoms months or even years after contracting the virus.
People who were vaccinated after contracting Covid were less likely to report chronic symptoms weeks and months after infection, according to data from the UK’s Office for National Statistics.
The odds of reporting prolonged Covid-19 decreased by 13% after the first vaccine dose, according to a peer-reviewed study, which examined data on more than 28,000 adults vaccinated after infection.
They found that the odds decreased by another 9% after the second dose, and that improvement lasted for at least nine weeks when the researchers followed the patients.
The researchers found no differences in risk across different demographic groups, type of vaccine used, time from infection with Covid to vaccination or other health factors, which they said reinforce the results.
Because the study was observational, it does not prove that vaccines were directly responsible for the reduced risk of prolonged COVID-19 infection, the researchers said, although it does suggest that vaccination may be beneficial in reducing the burden of the poorly understood condition.
The researchers called for more research to explore the relationship between vaccination and prolonged Covid-19 on a longer time scale, particularly the risk after infection with the omicron variant, and the effect of booster doses.
What we don’t know
What causes covid long illness. It is not well understood why some people develop symptoms of Covid for weeks, months, or even years after infection, which can affect almost any part of the body. In a related editorial, the researchers said scientists are exploring various possible explanations, including problems with the immune system and parts of the virus remaining in the body.
Long Covid is an all-encompassing broad term that covers a wide range of symptoms that some people report after contracting Covid-19. Symptoms can affect almost any organ system in the body, including the kidneys, heart, lungs, and brain, and usually include fatigue, muscle aches, brain fog, and respiratory problems. His appearance came as a surprise to most experts in the early stages of the epidemic and doctors are still researching the nature and causes of the condition. Vaccines are known to reduce the risk of long-term Covid, and also of contracting Covid in the first place, when given before infection, but their ability to reduce risk or relieve symptoms afterward is less clear. There are no treatments available for long Covid, and a better understanding of the mechanisms involved – both the causes of the emergence of long Covid and why vaccines appear to reduce the risk of infection with it – will be useful in determining trends toward future treatments.
24 million. That’s how many Americans could have a prolonged Covid-19 illness. Experts estimate that between 10% and 30% of patients will suffer from Covid long after recovering from the infection. Since more than 80 million cases of Covid-19 have been documented in the United States to date, this means that between 8 and 24 million people may have or suffer from the condition.
Here’s what a million COVID-19 deaths look like in the US (Forbes)
Studies (Forbes) have found that unvaccinated people are more likely to contract Covid-19 disease – and suffer symptoms for longer
Here’s what we know about Long-Covid, the chronic debilitating disease that can infect millions (Forbes)
The true health cost of the pandemic: How much has the coronavirus stolen from our lives? (temperamental nature)
How often can you get infected with the corona virus? (The New York Times)
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