Chinese Covid-19 vaccine candidate is safe and sparks antibody response in ...

Chinese Covid-19 vaccine candidate is safe and sparks antibody response in patients, early results show Vaccine candidate against Covid-19 has induced antibody responses in humans Study author said it was 'encouraging' to see this response in people over 60  The inactivated vaccine will move onto a third clinical trial phase in Beijing 

By Clare Mccarthy For Mailonline

Published: 09:47 BST, 17 October 2020 | Updated: 09:47 BST, 17 October 2020

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A Chinese Covid-19 vaccine candidate based on inactivated coronavirus is safe and elicits an antibody response, preliminary results have shown.

The research, published in the journal Lancet Infectious Disease, is based on small early phase randomised clinical trials involving 640 participants.

Scientists said those aged 60 and over were slower to respond, with antibodies taking up to 42 days to be detected in blood tests, compared with 28 days for participants aged 18 to 59.

They also found antibody levels to be lower in those aged 60 to 80 years, compared with those aged 18 to 59.

A vaccine candidate against Covid-19 has induced antibody responses in humans in trial stages, including in people aged over 60 years old

A vaccine candidate against Covid-19 has induced antibody responses in humans in trial stages, including in people aged over 60 years old

The researchers said the trial was not designed to assess efficacy of the vaccine, however, so it is not possible to say whether the antibody responses induced by the vaccine, called BBIBP-CorV, are sufficient to protect from coronavirus infection.

Study author Professor Xiaoming Yang, from the Beijing Institute of Biological Products Company Limited, said: 'Protecting older people is a key aim of a successful Covid-19 vaccine as this age group is at greater risk of severe illness from the disease.

'However, vaccines are sometimes less effective in this group because the immune system weakens with age.

'It is therefore encouraging to see that BBIBP-CorV induces antibody responses in people aged 60 and older,

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