Korean researchers can carry coronaviruses on their noses and throats for several weeks on Friday without showing symptoms that may explain how the virus spreads quietly, Korean researchers say. Reported on Friday. “Interestingly, the study is consistent with data from adults who are likely to remain asymptomatic in up to 40% of adults in the face of infection,” he said. .. .. Dr. Roberta De Biasi and Dr. Meghan Delaney of Children’s National Hospital in Washington DC wrote in the accompanying editorial. “In the study, the authors estimate that 85 infected children (93%) would have been missed using a testing strategy that focused on testing symptomatic patients only,” they estimate. wrote. This newly released study adds more evidence as to why casting widenets for contact tracking is an important strategy to reduce the spread of viruses. “Children often show little or no symptoms of COVID-19. They are not immune to this virus and they can be very ill. They may not show symptoms of COVID-19 yet Testing sexually exposed individuals is important for contact tracking and helps identify and support others at risk of infection Sally Goza said in a statement. This study, published in JAMA Pediatrics on a hard-to-diagnose Friday, included asymptomatic, presymptomatic, and symptomatic 91 patients with COVID-19 diagnosed at 22 centers between February 18 and March 31. Data on children were included in Korea. Of these patients, 20 (or 22%) of these patients had no apparent symptoms and remained asymptomatic throughout the study. That is, 20%) are presymptomatic and they feel sick at TI. In total, more than half of the children (71 children or 78%) have fever, cough, diarrhea, abdominal pain, smell and taste. DeBiasi and Delaney’s editorial appeared to vary in duration from 1 to 36 days COPID at the beginning of symptoms among symptomatic patients. -19 was diagnosed-most of the symptomatic patients-66.2% had unrecognized symptoms before being diagnosed and 25.4% had symptoms after being diagnosed. “It became infected. It emphasizes the concept that a child is likely to go unnoticed by either, and even in the absence of symptoms, continued normal activity can contribute to viral circulation within the community,” DeBiasi and Delaney said. writing. The virus remained in the respiratory system overall. The virus was detected in asymptomatic children on average for 14 days. The study could not have identified the date of the first infection, which could have left the virus in more children, but this does not necessarily mean that the children spread the virus, experts say. say. Viral genetic material in swabs “does not have to be congruent with an infection, especially in people without significant symptoms such as coughing and sneezing,” Calum Semple, a professor of child health and developmental medicine at the University of Liverpool, who was not involved in the study. In addition, “sensitive molecular detection methods can detect not only viable infectious viruses but also nonviable fragments of RNA,” DeBiasi and Delaney wrote. Similar findings will be apparent for larger groups of children in other parts of the world. Nonetheless, the new study says public health officials, according to De Beercia and Delaney, said, “To prevent the spread of the virus in schools, “a surveillance strategy that tests only symptomatic children moves around communities and schools. I can’t identify children who shed the virus silently while they were there.” “Asymptomatic carriers act as important reservoirs in areas where face mask use is not widely accepted or used by the general public. And may facilitate a quiet spread throughout the community.” Without data and transparency, science and health professionals are hindered-and families are harmed-the virus can be used by others. “There isn’t enough information to help me understand how easy it is to spread and how to stop it,” she said. ..
Korean researchers can carry coronavirus for weeks on their noses and throats on Friday, although they may explain how the virus spreads quietly even if children do not show symptoms ..
“In this series of case studies, invisible infections in children may be associated with silent COVID-19 infections in the community,” the researchers wrote in a new study.
“Interestingly, this study is consistent with adult data that could up to 40% of adults remain asymptomatic in the face of infection,” said a child in Washington, DC. Dr. Roberta De Biasi and Dr. Meghan Delaney of both national hospitals wrote. The accompanying editorial. Neither was involved in the study.
“In this study, the authors estimate that 85 infected children (93%) would have been missed using a testing strategy that focused on testing symptomatic patients only,” they said. Wrote.
This newly released study adds more evidence as to why casting widenets on contact traces is an important strategy to mitigate viral spread.
“We know that children often show little or no symptoms of COVID-19, and that they are not immune to the virus and that they can be very ill. I know that testing exposed individuals who may not yet show symptoms of COVID-19 is that contact tracking identifies and supports other people at risk of infection. It helps,” said Dr. Sally Goza of AAP in a statement.
Difficult to diagnose
This study Journal JAMA Pediatrics Friday included data from 91 asymptomatic, presymptomatic, and symptomatic children diagnosed with COVID-19 between February 18 and March 31 at 22 centers in South Korea ..
Of those patients, 20 (22%) had no apparent symptoms and remained asymptomatic throughout the study.
Another 18 children (20%) were presymptomatic. So, they didn’t look or feel good at the time, but eventually developed symptoms later.
In total, more than half of the children (71 children or 78%) had symptoms such as fever, cough, diarrhea, abdominal pain, smell and loss of taste, among other symptoms. The duration of symptoms varies from 1 to 36 days.
“This suggests that even mildly to moderately affected children have long-lasting symptoms,” Deviaci and Delaney wrote in an editorial.
According to the data, only 8.5% of symptomatic patients were diagnosed with COVID-19 at the onset of symptoms. Most -66.2% of symptomatic patients had unrecognized symptoms before being diagnosed and 25.4% had symptoms after being diagnosed.
“This underscores the notion that infected children are more likely to go unnoticed with or without symptoms and continue normal activity, which may contribute to viral circulation within the community,” DeBiasi said. Delaney writes.
The virus remained in the respiratory tract
The study found that genetic material from the virus was detectable in children for an average of 17.6 days overall. The virus was detected in asymptomatic children on average for 14 days. The virus may have persisted in children for even longer because the date of the first infection was not specified, the study said.
But this does not necessarily mean that the children have spread the virus, experts say.
The presence of viral genetic material in swabs “does not have to be equated with an infection, especially in people without significant symptoms such as coughing or sneezing,” said Calum Semple, University of Liverpool’s Child Health and Outbreak Medicine. Involved in teaching research, Stated in writing On Friday.
Moreover, “sensitive molecular detection methods not only detect viable infectious viruses, but they may also detect nonviable fragments of RNA,” DeBiasi and Delaney wrote.
Further research is also needed to determine if similar findings emerge among larger groups of children from other parts of the world.
Still, according to DeBiasi and Delaney, the new study provides information that public health authorities can use when considering the spread of the virus in schools.
“A surveillance strategy that tests only symptomatic children will fail to identify those who are quietly shedding the virus while roaming their communities and schools,” they wrote. “In areas where face mask use is not generally widely accepted or used, asymptomatic carriers can act as important reservoirs that may facilitate quiet spread throughout the community. There is a possibility.”
AAP’s Goza Friday statement reinforced the need for systematic and widespread tracking.
“Without data and transparency, science and medical professionals are hindered-and families are harmed-information that will help us understand how this virus can easily spread to others and stop it. Is lacking,” she said.
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