More than eight in 10 kids under the age of 17 have antibodies from a past COVID-19 infection, according to new data from the Centers for Disease Control and Prevention. The analysis shows that as of August, 86% of children between 6 months and 17-years-old have had at least one COVID infection since the pandemic began. That number is an increase from data in April, when the public health agency found 75% of people under the age of 17 had been infected with the virus. "What we have to recognize is this is more of an indication that there's been broad spread of this virus in the pediatric community," said Dr. John Brownstein, an ABC News contributor. "And that, you know, the kids are not sheltered from this virus. And we know that in a small number of cases, there's severe impacts." What the findings don't mean is that 86% of children and adolescents are now protected against COVID reinfection because they've had COVID before. Experts have noted that they don't know exactly how long protection from infection lasts after contracting the virus. "What we should not take away from this data is that that the kids are now immune from infection," Brownstein said. "As we know, immunity wanes, variants evolved to evade prior immunity."