To not get vaccinations is stupid.

Or more precisely - that statement is stupid.

And note I'm talking about vaccinations related to travel - not childhood immunization.

In 30+ years of travel I would estimate that the majority of travelers I've met in Asia don't get any injections before travel. The majority. And over the years countless people on this site have stated they don't get vaccinations before a trip.

Book a flight
read a guidebook and look on the internet
buy some travel insurance
check vacinations

That's really helpful, thank you usvaauer.
My card expired a few years ago, I've carried a print out of the WHO page with it since, just in case.
I was challenged when flying from Europe into Tanzania, but when I mentioned the WHO policy, the health official agreed, grudgingly, that yes, it was fine.

My doctor won't update my card as they no longer provide the vaccine at all (we have a fancy and expensive travel clinic nearby now....) my old one is disintegrating rapidly - might have to laminate it.

I am seeking medical treatment outside the US because the prices here are ridiculous. I already paid nearly $300 for a yellow fever vaccine. I was quoted over a grand for all the immunizations I need.

I went to Emirates site, and punched in the details. It returned with this:

Nationality India
Destination India
Departure Tanzania

Health & Vaccination Information
Destination - India (IN)
Exempt from Yellow Fever vaccination:
Children under 6 months of age.

I am assuming I don't need YF vaccine to enter India from Tanzania.

Hi,

Proof of YF shot is the certificate issued to you when you got your YF shot. So far it was valid for 10 years.

A new vaccine has now been introduced which lasts lifetime, so once you get a shot of that, you will be issued a certificate that's valid for life time.

That's your proof.

I agree about doing a West Coast roadtrip and then flying to the East Coast. People don't really get how big the US is. California alone is the size of New Zealand. You could spend 4 weeks on just a California roadtrip.

If you are be visiting Southern California, especially San Diego, you might want to consider getting a Hep A vaccination if you don't have it already. Hep A is a good idea to get regardless if you will be doing a lot of traveling. California is going through the second largest Hep A outbreak in the US ever. The largest one that's being spread person to person. The other one was a one time contamination of spinach, or was it lettuce. I can't remember.

As for driving from the West to the East, it's mostly boring. There will be vast stretches of desert and corn broken up by some truly stunning landscape, particularly in Utah. While sand and corn for hundreds of miles is kind of impressive for the 1st hour or two, it gets monotonous after a while. There's also the risk of being shaken down by the cops. Never carry large sums of cash with you in the US. America has legalized shakedowns. The cops are legally allowed to seize any money you are carrying on you with no charge let alone conviction. I happens less in urban areas, much more in rural areas. Like driving across the middle of nowhere America.