Left arm or right? Why it matters where you get your vaccine

[canetoad]

If you’re rolling up your sleeves for a flu or COVID vaccine this season, you may not give much thought to which arm ultimately receives the jab.

But new Australian research suggests location does matter when it comes to generating a strong immune response from booster vaccines.

The study, published in the journal Cell on Tuesday, found booster vaccines given in the same arm as the first dose generated a stronger and more rapid immune response.

The findings, made in mice and replicated in humans, shed light on a previously understudied corner of the immune system, and could eventually be used to develop next-generation vaccines that require fewer boosters.

https://www.theage.com.au/national/left-arm-or-right-why-it-matters-where-you-get-your-vaccine-20250424-p5lty6.html

Archive: https://archive.md/P9iB0

[tanyev]

1. Interesting.

[marble falls]

2. Can't think of a possible reason why this would be, but it is interesting. Paticularly since I let the ...

... medic choose the arm. As an aging Vet with a slew of shots and boosters, I have no clue which arm what shot went where.

[Skittles]

3. I tend to get them in my non-writing arm

so I am good

[comradebillyboy]

4. Bobby Jr will make sure that there aren't any

new flu and covid vaccines this fall. He's a killer and he has no mercy.

[Meowmee]

5. Interesting

I always get mine in my non dominant arm now. One year I got flu in one and pneumonia in the other.

[Rhiannon12866]

8. Same here, but one year I did the same thing and I won't do that again.

[MagickMuffin]

6. Non dominate arm for me

It's a just in case thing, which proved to be the best thing last go round. Tired the kroger pharmacy, never again. My arm hurt for over 2weeks. Hurt like hell, first time having lingering pain.

[pansypoo53219]

7. artist. i need my right arm. left arm gets shots etc.

[LetMyPeopleVote]

9. I always get my COVID shots in my left arm

[elocs]

10. If it matters, why not just tell us in the title? Too easy? n/t