That's so weird to me given that literally everyone where I'm from(Poland) has this on their left arm. Nothing to post on Instagram about. It's as universal as having a belly button - not having a vaccine scar on your arm would be the thing to post about if anything.
Although I do remember school being very strict about anyone whacking someone elses BCG arm.
[https://www.health.nsw.gov.au/Infectious/tuberculosis/Pages/...]
Smallpox and TB vaccines both do though.
Perhaps you got a combo?
[https://my.clevelandclinic.org/health/articles/smallpox-vacc...]
As far as I can tell, German measles vaccine doesn’t cause a scar anymore than MMR (it’s a sub component).
This is misleading. Vaccines, including those for covid, generally include adjuvants to stimulate the immune system [1]. While I understand the point your making here, the covid vaccines were not syringes with pure RNA in them.
The safety record of the BCG vaccine, in terms of permanent harm, is pretty good. But a normal side effect is "The usual expected reaction to BCG vaccination is redness and/or a small lump at the injection site, followed by a small ulcer (open sore) a few weeks later (usually less than 1 cm in diameter). The ulcer may last from a few weeks to months before healing to a small flat scar."[2] Mass vaccination will have parents screaming "my perfect baby has an open sore from the vaccine" on Instagram, with pictures.
The classic live-virus smallpox vaccine has similar side effects, by the way, plus a death rate of 1-2 per million.
Huge political problem. Remember all the screaming about the COVID vaccines, which are pure RNA, can't replicate, and have fewer side effects.
[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC3349743/#s6
[2] https://www.rch.org.au/uploadedFiles/Main/Content/immunisati...