Kids Under This Age May Carry 100 Times More COVID Than Adults, Study Says

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<p>Back-to-school season is nearly upon us, but instead of celebrating a soon-to-be quiet home or buying school supplies, many parents are instead panicking about whether or not their kids will be in the classroom and safe from coronavirus. And, of course, if they are back at school, there’s the question of whether or not they’ll bring the virus home. Now, a new study is providing some startling insight into these questions. The study, out of Northwestern University Feinberg School of Medicine, found that <a href=”″ target=”_blank” rel=”noopener noreferrer”>young children in particular carry far more of the coronavirus</a> than adults. In fact, the research found up to a <strong>”100-fold greater amount of SARS-CoV-2 in the upper respiratory tract of young children” under 5 years old.</strong></p>
<p>The new study, published in <em>JAMA Pediatrics</em>, looked at 145 COVID-19 patients with mild to moderate illness within one week of when their symptoms began. The <a href=”” target=”_blank” rel=”noopener noreferrer”>researchers compared three age groups</a>: young children under 5, children between 5 and 17 years old, and adults 18 to 65 years old. While they found similar amounts of coronavirus present in older children and adults, in children under 5, they found 10 to 100 times <em>more</em> particles in the respiratory tract.</p>
<p><img class=”alignnone wp-image-230865 size-full” src=”″ alt=”Worried black mother looking at thermometer, ill daughter coughing” width=”1200″ height=”800″ data-recalc-dims=”1″ /></p>
<p>The research was led by <strong>Taylor Heald-Sargent</strong>, MD, a pediatric infectious diseases expert at the Ann and Robert H. Lurie Children’s Hospital of Chicago. In the report, Heald-Sargent and her team note that children often drive the spread of respiratory and gastrointestinal illnesses—and COVID-19 may be no different.</p>
<p>”It definitely shows that <a href=”” target=”_blank” rel=”noopener noreferrer”>kids do have levels of virus</a> similar to and maybe even higher than adults,” Heald-Sargent told <em>The New York Times</em>. “It wouldn’t be surprising if they were able to shed [the virus]” and spread it to others. (Viral shedding indicates how long someone is releasing contaminated particles. “Evidence suggests that the <a href=”” target=”_blank” rel=”noopener noreferrer”>novel coronavirus is most contagious</a> when symptoms are worse and viral shedding is high,” WebMD notes.)</p>
<p>The research notes that school closures early in the pandemic likely “thwarted larger-scale investigations of schools as a source of community transmission.” In other words, we do not yet know if <a href=”” target=”_blank” rel=”noopener noreferrer”>schools are COVID-19 superspreaders</a> because we shut them down in the first few weeks of the outbreak.</p>
<p>”The <a href=”” target=”_blank” rel=”noopener noreferrer”>school situation</a> is so complicated—there are many nuances beyond just the scientific one,” Heald-Sargent told <em>The Times</em>.</p>
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<p>A recent study out of South Korea—published in the CDC’s journal <em>Emerging Infectious Diseases—</em>looked at whether or not children spread COVID-19. Researchers looked at 5,700 people who reported coronavirus symptoms between January 20 to March 27, which is when South Korea <a href=”” target=”_blank” rel=”noopener noreferrer”>closed schools</a>. The findings indicate that those between the ages of 10 and 19 are the <a href=”” target=”_blank” rel=”noopener noreferrer”>most likely to spread the coronavirus</a> in their households.</p>
<p>”We detected COVID-19 in 11.8 percent of household contacts; <a href=”” target=”_blank” rel=”noopener noreferrer”>rates were higher for contacts of children than adults</a>,” the researchers said. About 19 percent of those who shared a home with sick patients in that 10-19 age group also contracted COVID-19. Children younger than 10 years old were the least likely to spread the disease (about 5 percent of their contacts got sick). So, there is evidence that children of a certain age are more infectious.</p>
<p>As for the new study, Heald-Sargent told <em>The Times</em><em>, </em>”one takeaway from this is that we can’t assume that just because kids aren’t getting sick, or very sick, that they don’t have the virus.” And for more on kids and COVID, check out <a href=”” target=”_blank” rel=”noopener noreferrer”>The 8 Most Likely Ways Kids Can Spread COVID at School, Experts Say</a>.</p>

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