Mixing vaccines with AstraZeneca, Pfizer induces strong immune response: Lancet study

Following up first doses of the AstraZeneca or Pfizer vaccines with second doses of the Moderna or Novavax jabs generates robust immune response against Covid-19, according to a study published in The Lancet journal.

A team led by researchers at the University of Oxford in the UK found that no safety concerns were raised in the study of 1,070 participants.

In addition, a significantly higher number of short-lived vaccine reactions were reported in volunteers who received a second dose of Moderna compared to those who received two doses of either AstraZeneca or Pfizer.

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The study gains essence as the new variant of Omicron poses threat to become the dominant variant across the globe. It also supports flexible use of these vaccines, which is crucial to help rapidly deploy these vaccines, especially in low and middle-income countries.

The study gains essence as the Omicron variant of coronavirus poses threat to become the dominant strain across the globe. It also supports flexible use of these vaccines, which is crucial to help rapidly deploy these vaccines, especially in low and middle-income countries.