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I had to be vaccinated to enter first grade, and again in college. Since I went to a public school, doesn't that already kind of answer this question?


MMR vaccines are sterilizing, i.e. you take them once and done. No lifetime booster subscription.

Current Covid vaccines are non-sterilizing. They do not provide immunity that is equivalent to the MMR vaccine.

A future (nasal) Covid vaccine may offer long-term mucosal and blood/serum immunity.


Why isn't the nasal vaccine being produced?


Some are in trials.

https://www.indiatoday.in/coronavirus-outbreak/story/india-n...

https://medicalxpress.com/news/2021-08-sniffing-alternative-...

https://www.voanews.com/east-asia-pacific/researchers-begin-...




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