I don't think "against transmission period" is really possible, no? The whole point of a vaccine is to prime your immune system, it does not provide a magical

I don't think "against transmission period" is really possible, no? The whole point of a vaccine is to prime your immune system, it does not provide a magical shield to your body. If you get exposed to COVID-19 after being vaxxed, you will still have COVID-19 in your system for some amount of time. It will just (hopefully) get killed very quickly when the memory B/T cells (that were created by your body when you had an immune response to the vaccine) ramp up production.