This one is pretty interesting ... getting all your vaccination shots in the same arm is better than if on different arms. All my Covid shots have been on left shoulder so I'm good.
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Researchers in Germany found people who got all their shots in one arm had a stronger immune response than those who distributed shots between both arms, according to a study published last week in eBioMedicine, a peer-reviewed journal from The Lancet Discovery Science.
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Two weeks after receiving the shots, researchers discovered certain immune cells – commonly known as “killer T cells” – were detected in 67% of people who received both injections in the same arm versus only 43% of those who got them in different arms.
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The possible reason ...
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People may respond better to sequential shots in the same arm because the vaccines are targeting the same lymph nodes, making them more active in producing immune cells to fight off infections, study authors suggest.
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