1. There isn't a TB vaccine. What you get annually is a skin test to see if you have been exposed or infected.
2. Immunity from flu vaccines wanes over time. This can happen with other vaccines. That's why we give boosters for tetanus and measles.
3. The experience of waning hasn't been duplicated in other surveys, including in Israel. We don't know why they saw that in their early vaccinations.
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2. Immunity from flu vaccines wanes over time. This can happen with other vaccines. That's why we give boosters for tetanus and measles.
3. The experience of waning hasn't been duplicated in other surveys, including in Israel. We don't know why they saw that in their early vaccinations.
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Also, the bigger question is really why do some diseases require boosters but others don't. ELI5.
That's super interesting on point 3. So we're not sure if COVID vaccine wanes or not yet.