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AstraZeneca-Pfizer Covid-19 Vaccine Combination Gives Better Protection: Oxford Study

London: With the shortage of the coronavirus vaccines on the global stage, a study conducted by Oxford University found out that alternating doses of the AstraZeneca and Pfizer-BioNTech vaccines creates robust immune responses against COVID-19.

Picture used for representational purposes only. (Photo Credit: Pexels)

London: With the shortage of the coronavirus vaccines on the global stage, a study conducted by Oxford University found out that alternating doses of the AstraZeneca and Pfizer-BioNTech vaccines creates robust immune responses against COVID-19.

As per the study, ‘mixed’ schedules of these Covid vaccines induced high concentrations of antibodies against the SARS-CoV2 spike IgG protein when jabs were administered four weeks apart.

The study, published on the Lancet pre-print server, also points out towards all possible vaccination schedules involving the Oxford-AstraZeneca and Pfizer-BioNTech vaccines could potentially be used against coronavirus.

ALSO READ: COVID-19 Deaths Higher in 18-50 Age Group Than Patients Above 65: AIIMS Study

“The Com-COV study has evaluated ‘mix and match’ combinations of the Oxford and Pfizer vaccines to see to what extent these vaccines can be used interchangeably, potentially allowing flexibility in the UK and global vaccine roll-out,” said Professor Matthew Snape, Associate Professor in Paediatrics and Vaccinology at the University of Oxford, and Chief Investigator on the trial.

“The results show that when given at a four-week interval both mixed schedules induce an immune response that is above the threshold set by the standard schedule of the Oxford/AstraZeneca vaccine.”

Professor Snape also said that these results are an invaluable mantra to the use of mixed dose schedules, however, the interval of four weeks studied here is way shorter than the eight to 12-week schedule commonly used for the Oxford-AstraZeneca vaccine.

ALSO READ: Single Dose of Pfizer, AstraZeneca Covid Vaccine Offers 60 pc Protection: Lancet Study

Furthermore, UK Deputy Chief Medical Officer Professor Jonathan Van-Tam said: ‘Today’s data are a vital step forward, showing a mixed schedule gives people protective immunity against COVID-19 after four weeks.”

“Our non-mixed (homologous) vaccination programme has already saved tens of thousands of lives across the UK but we now know mixing doses could provide us with even greater flexibility for a booster programme, while also supporting countries which have further to go with their vaccine rollouts and who may be experiencing supply difficulties.”

(With ANI Inputs)

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