I have the records and little yellow card. Military has the records. I've never released them nor turned them in to UAL. I've also never been asked in any country to prove any shots. This includes a lot of Africa and Asia, and South America. Both military and civilian travel. 2 different passports for that travel too.

Longer version of the same video. I just happened to watch it last night, before I saw your post.
https://www.*****ute.com/video/hfzL5gUeQvxr/

edit: as it turns out, the APC site edits out the letters b, i, t, c, and h when they are in a row. That's why the link above has ***** instead of those five letters. You will have to manually enter them if you want to watch the video. About 29 minutes long.

Vaccine Hesitant Focus Group Hosted by Frank Lutz

https://youtu.be/lSD_dSAFFwU

If your gonna waste 30 minutes on YouTube, try this instead.

First off Tanzania requires the YF vaccination and it was not required in the place I was headed. Second a comment was made that “I’ve never had to show my yellow book” I simply stated that I had. Third my showing a vacs card to the Tanzanian Government years before COVID-19 existed has NOTHING to do with the current situation or COVID in any way. And finally I’ve been to Tanzania multiple times not just once.

So my statement was that yes in fact on rare occasion you might have to show your old yellow card to get into or surprisingly out of a country.

That is all, carry on.

Fair enough. Didn't mean to disregard what your experience was. The current discussion is about Vax passport mostly related to Covid. Sorry if I made assumptions. I don't feel Covid warrants the same treatment as YF.

Neither do I.

No I’m just saying the ones they do have, were most likely needed for precoordination. They don’t have mine either but I do remember at
one point having to give them proof of a couple.