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COVID-19: Natural antibodies in children and teens can last for months

COVID-19: Natural antibodies in children and teens can last for months

 


A new study in the United States found evidence suggesting that children and teens previously infected with COVID-19 are developing natural antibodies that can last for months.

the study, Published in Journal Pediatrics We examined data on 218 children and adolescents aged 5 to 19 years, led by researchers at the University of Texas Health Sciences Center in Houston.

Participants were enrolled in the Texas Coronavirus Antibody Response Survey (CARES), which began in October 2020.

The purpose of this study is to determine the state of the antibody over time, and volunteers will collect blood in three separate doses over a period of 6 to 8 months.

Of the 218 participants in the study, 75 or 34.4% were tested positive for the COVID-19 antibody after providing the first sample. Two participants went from positive to negative on the second antibody test, and the rest remained positive on the third measurement. As a result, about 97% had antibodies from the first evaluation until about 7 months later.

“The information gathered from children infected with COVID-19 is whether the child is asymptomatic, the severity of the symptoms, and whether the child is healthy, obese, or obese when infected with the virus. These findings are important because they didn’t make any difference, depending on gender. It was the same for everyone, “said the corresponding author of the Department of Public Health, Department of Public Health, University of Texas, in Epidemiology, Human Genetics, and Environmental Sciences. A professor, Sarah Messiah, Said in a statement..

Researchers say the samples were collected during the circulation of Delta and Omicron variants, and the findings do not include the effects of vaccine protection.

The percentage of vaccinated participants was 7.3 percent on the first measurement, 9.6 percent on the second measurement, and 17.9 percent on the third measurement.

On the other hand, about 58% of participants were negative for infection-inducing antibodies on the third and final measurements. This means that “due to natural infections, a significant proportion of children are not yet immune to SARS-CoV-2.”

Messiah said there was a misunderstanding from parents who believed that their children were protected and did not need the vaccine after being infected with COVID-19.

She added that the adult literature shows that natural infections and vaccine protection provide the best protection.

“Our study is encouraging in that some amount of natural antibody lasts for at least 6 months in children, but the absolute defense threshold is not yet known,” Messiah said.

“We have great tools available to give children additional protection by vaccination, so if your child is qualified, take advantage of it.”

The study will be built Similar research from a year agoIt was found that children under the age of 10 produce more antibodies in response to coronavirus infections than adolescents and adults.

Sources

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2/ https://www.ctvnews.ca/health/coronavirus/some-children-teenagers-retain-natural-covid-19-antibodies-for-months-study-1.5826864

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