These aren't really vaccines, they're hardcore, long-term symptom suppressants. Like a highly advanced paracetamol. Proper vaccines don't behave like this. Yellow fever is a proper vaccine - I had one jab and it lasts me a lifetime. Rabies is a proper vaccine - I had 3 jabs in 2009, then a booster at the end of that year when I returned from travelling, never need it again.
Those are vaccines. These are not.
You said it right there. Multiple vaccines require more than one dose. People keep saying "boosters for life" because it seems old, sick and immunocompromised people require another dose of this vaccine if the studies out of Israel are correct.
You are wrong on rabies though:
Can you still get rabies after being vaccinated?
Individuals who have been vaccinated are far less likely to contract rabies. However, it is recommended that even those who have been vaccinated seek medical care to have 2 booster vaccines on day 0 and 3 after exposure.
These vaccine boosters activate the immune system more quickly. If you have not been vaccinated prior, the treatment consists of a blood product (HRIG) which can be difficult to access as well as 4-5 vaccines over 14-28 days.
https://www.traveldoctor.com.au/diseases/rabies
There are heaps of multi course vaccines that require boosters semi regularly. People just have such an issue because they don't want this one.
Tetanus for example:
What age is it recommended?
Children at 2 months, 4 months, 6 months, 18 months, 4 years, and between 10 and 15 years.
Pregnant women in the third trimester.
50 years old if you haven’t had a tetanus vaccine in the last 10 years.
65 years if you haven’t had a tetanus vaccine in the last 10 years.
If you are travelling overseas and haven’t had a tetanus vaccine in the last 10 years.
If you have an open or deep, penetrating wound and haven’t had a tetanus vaccine in the last 5 years.
How many doses are required? 6 doses, then boosters as indicated above.
https://www.healthdirect.gov.au/tetanus
