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Category: Broadly neutralising antibodies

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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Posted on August 15, 2020August 16, 2020

SARS-CoV-2-specific T cell immunity prevents recurrent severe COVID-19 disease

The immune system elicits robust, broad and highly functional memory T cell responses once a person is infected with novel coronavirus. T cells were found even in the absence of…

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Posted on August 15, 2020August 15, 2020

Interim results of phase-1-2 trials find inactivated coronavirus vaccine is safe

Interim results of Phase-1 and Phase-2 trials of an inactivated SARS-CoV-2 vaccine carried out in China show that the vaccine is well tolerated, safe, and produced neutralizing antibodies at 14…

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Posted on August 7, 2020August 12, 2020

One more study shows people unexposed to novel coronavirus have pre-existing immunity

One more study has shown that pre-existing T cell memory against four common cold coronaviruses can cross-recognise novel coronavirus (SARS-CoV-2) even when the person has never been infected with SARS-CoV-2…

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Posted on July 11, 2020July 11, 2020

Some people unexposed to novel coronavirus have pre-existing immunity

At least five studies found people unexposed to novel coronavirus exhibiting T cell immune responses specific to SARS-CoV-2. This might be arising from memory T cells derived from previous exposure…

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Posted on June 20, 2020

Antibodies from convalescent plasma protects against COVID-19

The researchers found passive transfer of neutralising antibodies isolated from convalescent plasma into Syrian hamsters protect the animals against the disease when exposed to the virus and also protects hamsters…

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Posted on June 20, 2020

Antibodies against coronavirus start to decrease in 2-3 months, study finds

The study found IgG levels and neutralizing antibodies started to decrease within two-three months after infection with novel coronavirus. The reduction was more (40%) in the case asymptomatic individuals than…

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Posted on April 11, 2020

COVID-19: Younger patients develop less neutralising antibodies

About 30% of patients with mild symptoms failed to develop high amounts of neutralising antibodies even after recovering from COVID-19 disease. If natural infection with novel coronavirus does not elicit…

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