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COVID-19 vaccine reduces long COVID in children - Video

Published On 2024-01-18T09:00:58+05:30  |  Updated On 12 Feb 2024 11:36 PM IST
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Overview

Vaccination against SARS-CoV-2, the virus that causes COVID-19, reduces the risk of serious acute illness in children and adolescents. However, its role in protecting against persistent health problems in the months after COVID-19, or “long COVID,” was less clear. Now, researchers from 17 health systems in the U.S., in work led by investigators at the Children’s Hospital of Philadelphia (CHOP), have found that vaccination provides moderate protection against long COVID. Vaccination also has a stronger effect in adolescents, who have a higher risk of developing long COVID than young children.

The findings of the large retrospective study, based on electronic health records analyzed as part of the National Institutes of Health’s Researching COVID to Enhance Recovery (RECOVER) initiative, were published today in the journal Pediatrics.

While overall severity of COVID-19 has been lower in children than adults, the burden of long COVID has been difficult to accurately describe since the symptoms can vary widely and the exact ways the virus causes them are unknown. Some symptoms include brain fog, dyspnea, gastrointestinal dysfunction, generalized pain and fatigue, while others are more acute, like inflammatory reaction or heart problems.

The incidence of probable long COVID was 4.5% among patients with COVID-19, though only 0.7% of patients were clinically diagnosed with long COVID. The study estimated effectiveness of the vaccine within 12 months of administration as 35.4% against probable long COVID and 41.7% against diagnosed long COVID. The estimate was higher in adolescents compared with younger children (50.3% vs. 23.8%), and higher at six months (61.4%) but decreased to 10.6% at 18 months. Children who were vaccinated after recovering from COVID-19 also appeared to benefit, with vaccine effectiveness of 46% against probable long COVID after a subsequent episode of COVID-19.

“This study provides us with important data showing the protective effects of the vaccine against long-haul COVID and suggests that this protection is mostly from preventing visible infections. We hope this means that as vaccines are improved to be more effective against current strains of SARS-CoV-2, their protection against long COVID will get better, too,” said senior study author Charles Bailey, MD, PhD.

Reference: COVID-19 vaccine reduces long COVID in children; PEDIATRICS

Speakers

Anshika Mishra

Anshika Mishra is a dedicated scholar pursuing a Masters in Biotechnology, driven by a profound passion for exploring the intersection of science and healthcare. Having embarked on this academic journey with a passion to make meaningful contributions to the medical field, Anshika joined Medical Dialogues in 2023 to further delve into the realms of healthcare journalism.
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