根据新研究

Children previously infected with COVID-19 develop natural circulating antibodies that last for at least seven months, according to a new study led by researchers at UTHealth Houston.

The study was published today in儿科。

Researchers examined data from 218 children across the state of Texas between the ages of 5 and 19 who were enrolled in the Texas CARES survey, which began in October of 2020 with the goal of assessing COVID-19 antibody status over time among a population of adults and children in Texas.

Volunteers who enrolled in the study provided researchers with three separate blood draws. Samples were collected before the vaccine rollout and during the Delta and Omicron variants. To date, investigators have completed three different phases of the study.

“这是第一个研究从德州在乎测量员ey that includes data from all three time points in the survey,” saidSarah Messiah, PhD, MPH, corresponding author of the study and professor of epidemiology, human genetics, and environmental sciences at UTHealth School of Public Health Dallas campus. “These findings are important because the information we collected from children infected with COVID-19 didn’t differ at all by whether a child was asymptomatic, severity of symptoms, when they had the virus, were at a healthy weight or had obesity, or by gender. It was the same for everyone.”

而96%的感染者COVID-19继续d to have antibodies up to seven months later, well over half (58%) of the sample were negative for infection-induced antibodies at their third and final measurement. The findings do not include the impact of vaccine protection.

The results of Texas CARES, Messiah said, are just a step in understanding the virus’s impact on children. To date, 14 million kids in the U.S. have tested positive for the virus, she said.

“成人文学表明，自然感染以及疫苗引起的保护，可为您提供对Covid-19的最佳防御。一些父母的误解只是因为他们的孩子已经获得了19日，他们现在受到保护，而不需要获取疫苗。虽然我们的研究令人鼓舞，因为在儿童中至少持续了六个月的天然抗体，但我们仍然不知道绝对保护阈值。我们有一个很好的工具，可以通过获取疫苗来为孩子提供额外的保护，因此，如果您的孩子符合条件，请利用它。”弥赛亚说。

德克萨斯州关心的研究正在进行中。要了解有关如何参与的更多信息访问https://sph.uth.edu/projects/texascares/.

Additional UTHealth Houston authors included Stacia DeSantis, PhD; Luis Leon-Novelo, PhD; Yashar Talebi, MS; Frances Brito, MSc; Harold W. Kohl, III, PhD, MS; Melissa Valerio-Shewmaker, PhD; Jessica Ross, BS; Michael D. Swartz, PhD; Ashraf Yaseen, PhD; Steven H. Kelder, PhD, MPH; Shiming Zhang, MS; Onyinye S. Omega-Njemnobi, MD, PhD; Michael O. Gonzalez, MPH; Leqing Wu, MS; and Eric Boerwinkle, PhD. Other authors included David Lakey, MD, with The University of Texas System; and Jennifer A. Shuford, MD, MPH and Stephen J. Pont, MD, MPH, with the Texas Department of State Health Services.

The study was funded and supported by the Texas Department of State Health Services (#HHS000866600001) and the University of Texas System.

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