A child is vaccinated with the pediatric Pfizer vaccine at Mirae Children’s Hospital in Buk-gu, Gwangju last year./Reporter Kim Young-geun
Research results have shown that when infants and adolescents receive the COVID-19 vaccine, the infection rate against the omicron and delta mutant viruses is clearly reduced. This is the first large-scale empirical study analyzing the impact of vaccines on omicron and delta mutations.
Researchers at the University of Pennsylvania School of Medicine announced on the 9th that they reached this conclusion after analyzing data from approximately 250,000 patients. Experts have previously recommended vaccination of children and adolescents, but so far, the protective effect has only been confirmed in controlled environments in laboratories. This study analyzed the preventive effect of the coronavirus vaccine on actual pediatric patients.
Researchers collaborated with pediatric hospitals across the United States to secure data on 245,011 infants and adolescents. The researchers followed-up those patients who were vaccinated with the BNT162b2 vaccine (a vaccine produced by Pfizer and BioNTech) and those who were not. During the delta mutation epidemic, 77,392 adolescents and 111,539 infants were targeted, and during the omicron mutation epidemic, 56,080 adolescents were targeted. Approximately half of each group were vaccinated patients.
As a result of the analysis, the prevention rate of the delta mutation epidemic period vaccine was found to be 98.4% compared to the possibility of general adolescent infection. During the Omicron epidemic, the prevention rate dropped to 84.8%, but still showed high effectiveness. Dr. Yong Chen, who led the study, said, “This study had a longer follow-up period than previous studies, so we were able to confirm the preventive effect of the vaccine against delta and omicron mutations in a real environment.” He also added, “In addition, data from participants in the study were collected from primary hospitals, “The results were obtained through various institutions, including specialized hospitals, emergency rooms, and testing centers, and are representative of the pediatric population in the United States,” he said.
2024-01-09 02:03:45
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