@truthishidden But you don’t actually have a valid argument! Antibodies wear off after a few years which is why it is crucial to vaccinate young! Proper herd immunity will kill a virus in a vaccinated population after only a few short years which is why we don’t need to keep vaccinating adults every decade. And your raya to this is a study from the 1950s?! Studies from a little as 10 years ago are out of date, who knows what data and facts came to light in 60+ years!
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