The data from the Francis Crick Institute and the National Institute for Health Research UCLH Biomedical Research Centre also supports current plans to reduce the dose gap between jabs.
Pfizer vaccine recipients have lower antibodies targeting the Delta variant. Credit: PA
People who have received the Pfizer vaccine have lower antibody levels that target the Delta variant, first discovered in India, than those that targeted previously circulating variants in the UK, new data suggests.
The study found that after just one dose of the Pfizer jab, people are less likely to develop antibody levels against the Delta variant, as high as those seen against the previously dominant Alpha variant, which was first discovered in Kent.
The study, from the Francis Crick Institute and the National Institute for Health Research, suggests the level of such antibodies are lower with older age and that the levels decline over time.
Levels of antibodies in the blood of vaccinated people that are able to recognise and fight the new SARS-CoV-2 Delta variant first discovered in India (B.1.617.2) are on average lower than those against previously circulating variants in the UK, according to new laboratory data from the Francis Crick Institute and the National Institute for Health Research (NIHR) UCLH Biomedical Research Centre, published as a Research letter in The Lancet.
Pfizer/BioNTech Covid vaccine: Pfizer jab recipients have lower antibodies targeting Indian variant
The research also suggests the levels of these antibodies are lower with increasing age and that levels decline over time
Elliot Hawkins
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Around 40 million people in the UK have now received at least one dose of a Covid-19 vaccine.
Anybody who s had Pfizer vaccine jab issued crucial update over Indian variant birminghammail.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from birminghammail.co.uk Daily Mail and Mail on Sunday newspapers.