A single dose of Pfizer’s Covid-19 vaccine could reduce infections in children, a new study suggests, which reveals that if a child contracts the disease after being vaccinated, they are “likely to have a milder infection.”
Research by King’s College London and Zoe Symptoms, UK, looked at the effectiveness of a single dose of the Pfizer/BioNTech vaccine in children. The researchers analyzed information on 115,775 children aged 12 to 17 using the Covid Symptom Study app. Of the children involved in the study, 25,971 received a dose of the vaccine.
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Experts found that the likelihood of being infected with the Ômicron variant was reduced by 53.7% between 14 and 30 days after vaccination and by 63.7% around 90 days after the dose. The researchers said that children were more likely to avoid the disease after being vaccinated if they had already contracted the virus.
According to the team, vaccinated children and youth who contracted Covid-19 during Delta’s wave of infections had milder illness than unvaccinated children. But during the Omicron wave this was only evident in 12- to 15-year-olds, not the 16- and 17-year-olds involved in the study.
The study’s senior author, Emma Duncan, a professor at King’s College London, said the “article offers useful information for parents considering vaccinating their children against Sars-Cov-2”. “Even a single dose of Pfizer’s vaccine means that children and youth are less likely to contract Covid-19 and, if infected after vaccination, are likely to have a milder infection of the disease – at least for the Delta and Omicron variants,” he added. Is it over there.
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