Health
Study: Asymptomatic Children May Spread COVID-19 Virus for 3 Weeks
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New research shows that children are asymptomatic but have high viral loads of SARS-CoV-2. They can remain infectious for up to 3 weeks.
New research shows that children are asymptomatic but have high viral loads of SARS-CoV-2. They can remain infectious for up to 3 weeks.
Photo: Getty Images
New research shows that children are asymptomatic but have high viral loads of SARS-CoV-2. They can remain infectious for up to 3 weeks.
New research shows that children are asymptomatic but have high viral loads of SARS-CoV-2. They can remain infectious for up to 3 weeks.
Photo: Getty Images
Children who test positive for coronavirus but show no symptoms can be infected for up to 3 weeks, New research By two Washington-based scientists.
The findings could have a major impact on teachers and staff at schools that reopened to fall classes and day care centers.
In a paper published in JAMA Pediatrics on August 28, two Washington-based scientists, Robeta L. De Biasi and Meghan Delaney, analyzed 91 COVID-19 cases in children from 22 hospitals in South Korea. Did. They found that half of asymptomatic children and one-fifth of asymptomatic children shed the virus in 3 days to 3 weeks.
About 22% of cases were asymptomatic, another 20% were asymptomatic initially, but later developed symptoms. These amounts roughly correspond to the estimated percentage of asymptomatic or presymptomatic COVID-19-positive adults (40%). A total of 58% of Korean children had symptoms at the first examination.
Earlier scientists thought that children infected with COVID-19 mainly experienced mild symptoms and would soon disappear.
another Research published in Journal of Pediatrics On August 19, respiratory secretions were examined in 192 children, adolescents, and adolescents who came to the hospital with symptoms of COVID-19 or suspected exposure to the disease.
Researchers at the Harvard Medical School, which are based at the Massachusetts General Hospital and Children’s General Hospital, have shown that children and young adults have a higher virus or viral load than adults fighting COVID-19 in the intensive care unit.
“I didn’t expect the viral load to be that high,” he said. Lael Yonker, Associate Professor of Pediatrics, Harvard Medical School In mass general. “You are thinking about the hospital and all the precautions that have been taken to treat severely ill adults, but the viral load in these hospitalized patients is roaming with high SARS-CoV-2 viruses” Is significantly lower than “children”. load. “
In addition, scientists have found that younger children have much lower levels of the ACE-2 receptor. The low number of ACE-2 proteins was inconsistent with previous assumptions that children were less likely to become infected or ill.
The authors of this study concluded that children may be a potential source of the SARS-CoV-2 pandemic, despite mild illness or lack of symptoms.
Children with COVID-19 are less likely to be as severe as adults, but attending school as an asymptomatic carrier or asymptomatic carrier can spread the infection and bring the virus home. The scientists write.
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Mike Moffitt is a SFGATE reporter. Email: [email protected]. Twitter: @Mike_at_SFGate
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