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A new study analysing long-Covid among children and teenagers in the US has found that <keyword id="44308" type="General" weightage="20" keywordseo="symptoms" source="Orion">symptoms</keyword> differed between the two groups. While children faced more brain and stomach-related problems, teenagers experienced fatigue, <keyword id="950054" type="General" weightage="20" keywordseo="Physical-Pain" source="Orion">physical pain</keyword>, and loss of smell and taste. Moreover, long-Covid symptoms common in both adults and teens were more than those between teens and children, highlighting the importance of age groups-based COVID-19 research, according to the team of over 140 researchers that conducted the study. Published in The Journal of the American Medical Association (JAMA), the study is part of the US National Institutes of Health (NIH)'s 'RECOVER' Initiative, aimed at understanding and preventing long-Covid, which refers to a set of persisting symptoms months after having COVID-19 <keyword id="6393040" type="General" weightage="20" keywordseo="infection" source="Orion">infection</keyword>. The researchers studied more than 5,300 children and adolescents, of whom about 3,860 -- - 751 children and 3109 adolescents -- had a history of the viral infection. Caregivers were surveyed for about 75 symptoms that occurred at least 90 days after an initial COVID-19 infection and lasted for at least a month. They were also enquired about their child's overall health and quality of life. Among children aged 6-11 years, the most common long <keyword id="8764262" type="General" weightage="20" keywordseo="Covid" source="Orion">COVID</keyword> symptoms were headache (57%), followed by trouble with memory/focusing, trouble sleeping (44 %) and stomach pain (43 %), the study found. Among the adolescents, about 80% had tiredness or low energy during the day, while physical pain in the body, muscles and joints affected 60% of them. Headaches persisted in 55% of the teens, while 47% of them continued to have trouble remembering or concentrating. While identifying groups of symptoms distinct to each age group, the researchers developed a long-Covid research index that indicates the likelihood of the condition in a child or a teenager. The index, separate for both age groups, included 18 prolonged symptoms that were more common in children and 17 common among teenagers. "The symptoms that make up the research index are not the only symptoms a child may have and they're not the most severe. But they are most predictive in determining who may have long COVID," said lead author of the study Rachel Gross, an associate professor in the departments of <keyword id="492850" type="General" weightage="20" keywordseo="Paediatrics" source="Orion">Paediatrics</keyword> and Population Health at New York University. In the study group, 45% of the infected (338) and 33% of the uninfected children, along with 39% of the infected and 27 % of the uninfected adolescents reported having at least one prolonged symptom, the authors of the study said. Twenty-six symptoms among infected school-age children and 18 symptoms in infected adolescents persisted in at least 5% of the participants, they said.

Symptoms of long Covid differ between children, teens: US study

<ul class="summary-list"><li>Forget friendship bracelets — some Swifties are calling Covid-19 their new concert souvenirs.</li><li>Some fans who got COVID-10 after attending her Eras Tour are calling it a "gift" from "Mother."</li></ul>It's been years since the pandemic times of COVID-19 lockdowns and the era of mandated masking. But while the virus is still circulating, some Swifties have become wildly optimistic about what it means to catch an infection at one of their idol's concerts. So much so that some Swifties on social media are playfully dubbing the COVID-19 infection they think they got from her concerts a "souvenir" and a "gift" from "Mother."A post on X from a Spanish Taylor Swift fan account asked followers: "Did you go to <a target="_blank" class="css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1loqt21" href="https://x.com/hashtag/MadridTStheErasTour?src=hashtag_click">#MadridTStheErasTour</a> and take COVID, a virus, or a cold with you as a souvenir? I open a survey."Of the nearly 10,800 votes, 35% voted yes. People in the poll's comments section described their symptoms and showed their positive COVID-19 tests — but also raved about how they thought it was worth it. The poll has been viewed nearly 144,000 times at press time.One X user <a target="_blank" href="https://x.com/RaquellvsRhett/status/1797947023641247766">commented</a>: "Going to Taylor's concert has meant losing my voice, losing my mental health and, well, my health in general, I'm more dead than alive (but I would go to the concert a thousand more times)."Earlier in February, an Australian concertgoer posted a TikTok of herself dressed up in her concert outfit and glam makeup. The video then cut straight to her holding up a positive COVID-19 test kit in bed. She captioned the post: "The Eras Tour souvenir no ones talking about. if youre heading to the sydney shows this weekend, wash your hands regularly!"However, other X users have voiced their disbelief at Swifties calling the virus a souvenir.One X user <a target="_blank" href="https://x.com/pot8um/status/1799513266265166174?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1799513266265166174%7Ctwgr%5E823e04af52763fad2f3a84db8d34b05f9516778a%7Ctwcon%5Es1_&amp;ref_url=https%3A%2F%2Fmuse.insider.com%2Fstory%2F666a622b074e87bb00f6cf0e">wrote:</a> "Taylor Swift's concert attendees are calling their Covid infections 'souvenirs' and 'gifts' from 'Mother,' and I'm supposed to NOT wanna launch myself into the sun???"Concerts have gained notoriety as COVID-19 superspreader events. In 2021, <a target="_blank" href="https://www.newsweek.com/over-2200-people-catch-covid-after-spain-music-festivals-catalonia-1616207">over 2,200 people caught the virus</a> after going to music festivals in northeast Spain.And while the virus is treated more like the common flu now, <a target="_blank" href="https://www.businessinsider.com/august-flu-vs-covid-infection-rate-2023-8">COVID-19 is still circulating</a> — and people are getting infected across the US.Virus-spreading or not, Swift's Eras Tour has been widely successful, propelling the <a target="_blank" href="https://www.businessinsider.com/tortured-poets-department-taylor-swift-new-album-earnings-eras-tour-2024-4">singer-songwriter to billionaire status</a>. Swift is now in the UK for her next leg of the tour. Swift's representative didn't immediately respond to a request for comment from Business Insider.

The COVID-19 infection you caught at a Taylor Swift concert is not a gift from 'Mother'

Variation in genes encoding proteins involved in immune responses could be behind why some people remain asymptomatic following <keyword id="9003584" type="General" weightage="20" keywordseo="sars-cov-2-infection" source="Orion">SARS-CoV-2 infection</keyword>. Human leukocyte antigen (HLA) genes encode these proteins used by the immune system in identifying and distinguishing healthy cells in the body from infected ones. Research has shown at least 20 % of Covid-infected do not develop symptoms, or remain asymptomatic. Critical to one's immunity and highly varied among individuals, the HLA system might have specific variants rendering them more protected against or vulnerable to Covid, the researchers in this US-Australia collaborative study wondered. Studying asymptomatic infection may improve our understanding of the features of the immune system that promote rapid clearance of the virus, the study published in the journal Nature said. To understand if an HLA variation might predispose some people to asymptomatic <keyword id="9114543" type="General" weightage="20" keywordseo="covid-infection" source="Orion">Covid infection</keyword>, the researchers enrolled 29,947 individuals to participate in a smartphone-based study designed to track COVID-19 symptoms and outcomes. All of them were DNA sequenced for their HLA genetic profiling. A total of 1,428 unvaccinated individuals reported a positive test for infection with SARS-CoV-2 and 136 of them reported having no symptoms. One in five individuals who remained asymptomatic after infection were found to carry a common variant of HLA called HLA-B*15:01. People carrying two copies of this variant were more than eight times likely to remain asymptomatic than those carrying other versions of HLA, the study found. "We hypothesised that their immune system could react so fast and powerfully that the virus was eliminated before causing any symptoms. It's like having an army that already knows what to look for and can tell by the uniform that these are the bad guys," according to Jill Hollenbach, professor at the University of California San Francisco, US. In a separate arm of the study, the researchers found that individuals carrying HLA-B*15:01 with no prior exposure to SARS-CoV-2 had T cells (a type of immune cell) that were reactive to SARS-CoV-2 protein fragments sharing some genetic sequences with other seasonal coronaviruses. This finding indicated that people carrying HLA-B*15:01 and previously exposed to seasonal cold viruses had pre-existing immunity to SARS-CoV-2 and could rapidly eliminate the virus before symptoms could present. The researchers analysed this to be because the T cells from pre-pandemic individuals, that could identify viral particles from past coronaviruses, created an immunological memory from the previous coronaviruses. These memory T cells recognise SARS-CoV-2, owing to its high similarities with those coronaviruses, and kill it very quickly. "So, even if the bad guys changed the uniform, the army would still be able to identify them by their boots or maybe a tattoo on their arms. That is how our immunological memory works to keep us healthy," said Danillo Augusto, assistant professor at the University of North Carolina at Charlotte, US.

Scientists may have found the reason behind asymptomatic Covid infections: Genetic variation in immune system

London, Headaches, memory problems, and fatigue -- commonly known to continue post a Covid-19 infection -- may be a result of inflammation in the rest of the body and not because SARS-CoV-2 infects the brain, claims a new research. Early on in the pandemic, researchers surmised that direct infection of the brain could be the cause behind these neurological symptoms. Many studies have also proposed the effect of <keyword id="19896627" type="General" weightage="20" keywordseo="covid" source="keywords">Covid</keyword> virus on the brain symptoms. But a study by researchers at the Charite- Universitatsmedizin Berlin in Germany has now produced evidence to support the new theory. "We took that as our hypothesis at the start, too. But so far, there has been no clear evidence that the coronavirus can persist in the brain, let alone proliferate," said <keyword id="20621224" type="General" weightage="20" keywordseo="dr-helena-radbruch" source="keywords">Dr Helena Radbruch</keyword>, head of the Chronic Neuroinflammation working group at the Department of Neuropathology at Charite. "For that, we would have needed to find evidence of intact virus particles in the brain, for example. Instead, the indications that the coronavirus could infect the brain come from indirect testing methods, so they aren't entirely conclusive," <keyword id="20621226" type="General" weightage="20" keywordseo="radbruch" source="keywords">Radbruch</keyword> added. According to a second hypothesis, the neurological symptoms would instead be a kind of side effect of the strong immune response the body deploys to defend against the virus. For the study, the team of researchers analysed various areas of the brain in 21 people who died in hospital settings, typically in an ICU, due to severe coronavirus infection. For comparison, the researchers studied nine patients who died of other causes after treatment in intensive care. First, they looked to see whether the tissue showed any visible changes and hunted for any indication of coronavirus. Then they conducted a detailed analysis of genes and proteins to identify the specific processes that had taken place inside individual cells. Like other teams of researchers before them, the Charite scientists found coronavirus genetic material in the brain in some cases. "But we didn't find neurons infected with SARS-CoV-2," Radbruch noted. "We assume that immune cells absorbed the virus in the body and then travelled to the brain. They're still carrying the virus, but it doesn't infect cells of the brain. So coronavirus has invaded other cells in the body, but not the brain itself." Still, the researchers did note striking changes in molecular processes in some cells of the brain in those infected with Covid-19: For example, the cells ramped up the interferon signalling pathway, which is typically activated in the course of a viral infection. "Some neurons evidently react to the inflammation in the rest of the body," said Prof. <keyword id="20621225" type="General" weightage="20" keywordseo="christian-conrad" source="keywords">Christian Conrad</keyword>, head of the <keyword id="20621227" type="General" weightage="20" keywordseo="intelligent-imaging" source="keywords">Intelligent Imaging</keyword> working group at the Berlin Institute of Health at Charite (BIH) and one of the principal investigators in the study. "This molecular reaction could be a good explanation for the neurological symptoms we see in Covid-19 patients. For example, neurotransmitters emitted by these cells in the brainstem could cause fatigue. That's because the brainstem is home to groups of cells that control drive, motivation, and mood." Further, the team found that the neurons' reaction to the inflammation is temporary, as shown by a comparison of people who died during an acute coronavirus infection with those who died at least two weeks afterward. The molecular changes are most evident during the acute infection phase, but they do normalise again afterward -- at least in the vast majority of cases.

You Searched For "covid 19 infection" and got 4 results

Symptoms of long Covid differ between children, teens: US study

PTI

The COVID-19 infection you caught at a Taylor Swift concert is not a gift from 'Mother'

Aditi Bharade

Scientists may have found the reason behind asymptomatic Covid infections: Genetic variation in immune system

PTI

Covid infection may not be responsible for memory problems & fatigue says new study

IANS

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