It is. Another interesting possibility would be they really did get vaccinated, and caught the COVID anyway, proving the vax doesn't work. Almost 10% of the Fleebags caught the dreaded disease.
Let's look at just the MMR vaccine as an example since it's been around for so very long.
The MMR vaccine is very safe and effective. Two doses of MMR vaccine are about 97% effective at preventing measles; one dose is about 93% effective. I wonder who in that mischief(what you call a large body of rats, appropriate no) was patient zero? And here's hoping they meet and greet as many dem senators as possible, Hey madam speaker have you said hello or have you scurried(rats scurry) to your bunker loaded with high end freezers and ice cream?