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Category: Neutralizing antibodies

Posted on February 11, 2021

Moderna, Pfizer vaccines neutralise variants encoding mutations E484K or N501Y but with less potency

The results were published in the journal Nature. Both Moderna and Pfizer-BioNTech vaccines showed no significant difference in neutralising activity. Individuals immunized with either Moderna or Pfizer-BioNTech vaccines produce closely…

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Posted on November 19, 2020November 19, 2020

Oxford vaccine found safe and immunogenic even in older adults

The results were published online in The Lancet on November 19. The results are based on the study of 560 participants enrolled between May 30 and August 8. Of the…

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Posted on August 29, 2020August 29, 2020

Pre-existing memory T cells may reduce COVID-19 severity, but do not prevent infection

Pre-existing memory T cells that cross-react with SARS-CoV-2 may only reduce COVID-19 severity cannot prevent infection. The memory T cells are extremely unlikely to prevent SARS-CoV-2 infections. That is just…

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Posted on August 24, 2020August 29, 2020

A case of coronavirus reinfection in Hong Kong confirmed by genome sequencing

Using genome sequencing, researchers at the University of Hong Kong have found a rare instance of reinfection with novel coronavirus for the second time, four-and-a-half months after the first infection.…

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Posted on August 19, 2020August 21, 2020

Intranasal vaccination of a coronavirus candidate vaccine prevents infection

A new vaccine candidate construct using chimpanzee adenovirus carrying the full length of novel coronavirus spike protein is able to achieve sterilizing immunity and prevent both upper and lower respiratory…

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Posted on August 15, 2020August 15, 2020

Novel coronavirus-specific nutralising antibodies last at least for six months

The researchers found that neutralizing antibodies were over 70% even at the end of six months. While IgG showed an initial contraction but stabilised at relatively high levels over the…

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