Mixing and matching the Pfizer/BioNTech and AstraZeneca-Oxford coronavirus vaccines spawns a “robust” immune response, a new study found.

The Oxford University-ran study, which attempted to determine whether using different brands of vaccines for the initial shot and the follow-up booster vaccination is beneficial, found that the alternating doses of the two vaccine brands elicit strong immunity.

The immune responses differed according to the order of immunization, with the Oxford-AstraZeneca shot followed by the Pfizer/BioNTech vaccine generated the better immune response out of the two mixed schedules, CNBC reported.

The researchers said the vaccine doses were given four weeks apart with data for a 12-week dose interval due in a short period of time.

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This correspondent is a guest contributor to The Washington Informer.

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