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Sunday shows preview: As delta variant spreads, US leaders raise concerns
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Sunday shows preview: As delta variant spreads, US leaders raise concerns
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Study highlights the importance of T cell cross reactivity in stopping severe COVID-19 infections
Researchers at La Jolla Institute for Immunology (LJI) have found that T cells from people who have recovered from COVID-19 or received the Moderna or Pfizer-BioNTech vaccines are still able to recognize several concerning SARS-CoV-2 variants.
Their new study, published online on July 1, 2021 in
Cell Reports Medicine, shows that both CD4+ helper T cells and CD8+ killer T cells can still recognize mutated forms of the virus. This reactivity is key to the body s complex immune response to the virus, which allows the body to kill infected cells and stop severe infections.
Moderna and Pfizer-BioNTech vaccines prime T cells to fight SARS-CoV-2 variants
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The variant, which was first detected in India, is more contagious, he added
Washington: The highly contagious Delta variant of the coronavirus is the greatest threat to America s attempt to eradicate the Covid pandemic, the country s leading infectious disease expert and White House Chief Medical Advisor Dr Anthony Fauci has warned.
The variant, which was first detected in India, is more contagious and causes more severe disease than other circulating variants, he said on Tuesday during a White House Covid-19 response team briefing.
Fauci said the Delta variant now makes up more than 20 percent of all new cases in the US, nearly doubling from nearly 10 percent two weeks ago. Similar to the situation in the UK, the Delta variant is currently the greatest threat in the US to our attempt to eliminate COVID-19, Fauci told reporters during a virtual news conference.